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SM4 Manual

by

MRM-Racing

V3.0

100

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Overrun limits

The percentage of throttle opening below which over-run shutdown will operate.
Over-run is deceleration with closed or very small throttle openings.

•

Over boost limits

Over boost margin. Used to set the amount of boost above the set point is
acceptable before the ECU cuts injectors.
Over boost time. The amount of time the boost can excide the over boost
margin before the injectors are cut.

Typical values are, Over boost margin 50kpa, Over boost time 1 to 2 seconds.

OverRun shutdown com

Over-run shutdown commence.
The engine RPM above which over-run shutdown starts. Typical value would be 2400
RPM. Over-run is deceleration with small or no throttle opening. This will turn injectors off
on over-run if engine RPM has exceeded the specified RPM. Can help engine breaking
or popping in the exhaust on over-run. See ECU Limits setup for over-run throttle and
load limit setting.

OverRun shutdown recovery

Over run shutdown recovery.
The engine RPM below which over run shut down disabled.
Typical value would be 1400 RPM. The engine RPM below which the injectors restart.

Rev limiter 1

Engine rev limiter.
Set engine RPM limits against engine temperature.

Example:-
Coolant temp (Deg C)
0.0 70 115 120
RPM 4000 6500 6500 2000

In this example the engine rev limiter will not allow the engine to achieve maximum RPM
until the engine temp is at or above 70 Deg. If the engine temperature exceeds 115 Deg
the rev limiter will dramatically reduce the engines maximum RPM making it impossible
to damage the engine due to overheating.

Rev limiter 2

You enable this function by assigning it an I/P before you can use it.
You assign I/Ps under "M1","I/P switches".
Engine rev limiter. Set engine RPM limits against engine temperature.

Example:-
Coolant temp (Deg C)
0.0 70 115 120
RPM 4000 6500 6500 2000

In this example the engine rev limiter will not allow the engine to achieve maximum RPM
until the engine temp is at or above 70 Deg.

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Содержание SM4

Страница 1: ......

Страница 2: ... UP GUIDE 22 COMPUTER REQUIREMENTS 22 INSTALLING AUTRONIC SOFTWARE 22 STARTING AUTRONIC SOFTWARE 22 BASIC WINDOWS CONVENTIONS 23 SOFTWARE BASIC SETUP GUIDE 24 BASE SETTINGS 24 IGNITION SETUP 25 INJECTOR SELECTION 26 I P CYLINDER SYNC 26 STARTING THE ENGINE FOR THE FIRST TIME 27 ITEMS REQUIRED 27 SOFTWARE 27 STARTING THE ENGINE 27 DIRECT FIRE IGNITION SEQUENCE TESTING 28 TUNING GUIDE 29 SETTING UP ...

Страница 3: ...Inc small 54 Dec small 54 Inc large 54 Dec large 54 Enter 54 Insert axis 54 Delete axis 55 Edit main axis 55 Keys 55 Maths 55 Export Import Print 55 Attribute 56 View table 57 Find site 57 Table running value 57 Manual A F Tune 57 Setup Auto tune 57 Table properties 58 Tag item 58 Edit Window Tagged Mode 58 Linear left to right 58 Linear top to bottom 58 EXP left to right 58 EXP top to bottom 58 E...

Страница 4: ... ECU telltales 65 Stepper power reset 65 Monitor Normal 65 Monitor Engine 65 Monitor Sensors 65 Monitor I O 65 Monitor GPC 66 Monitor Virtual dash 66 MENU M1 66 Base Settings 66 Ignition Setup 67 Ignition Dwell Table 69 Injectors 69 I P Cylinder sync 70 I P Switches 73 O P Setup 75 I P Analogs 76 I P HSI 80 CLC A F Ratio 81 Variable Cam Setup 82 Gearing Ratios 82 Air flow Sensor 82 Limp Home Table...

Страница 5: ...e ignition 93 Idle speed table 94 Idle ignition setup 94 IAC Tuning 95 IAC limits 96 IAC TPS follower 96 IAC Actuator Cal 97 M4 tables axis setup 97 MENU M5 97 Boost Tune 97 Boost setpoint 1 3 98 Boost dynamic comp 98 Boost offset 99 Boost modifier 99 ECU limits setup 99 OverRun shutdown com 100 OverRun shutdown recovery 100 Rev limiter 1 100 Rev limiter 2 100 Cut fuel ign pattern 101 Anti lag set...

Страница 6: ...PRESSURE REGULATOR 116 IGNITION SYSTEM 117 DUMB IGNITION MODULES 117 SMART IGNITION MODULES 118 FALLING EGDE RISING EDGE ON IGNITION MODULES 118 THE COIL NEGATIVE SIGNAL 118 DIRECT FIRE CDI AUTRONIC 500R 119 TRIGGER INTERFACE 121 THE INPUT TRIGGER 121 TRIGGER DEVICES 122 ONE PULSE PER TDC 123 MULTI TOOTH TRIGGER 124 MOTRONIC TRIGGER 124 OTHER TRIGGERS 124 AUTRONIC ANALYZER 127 CHANGING SETTINGS 12...

Страница 7: ...SM4 Manual by MRM Racing V3 0 7 BOOST CONTROL DIAGRAMS 134 INTERNAL WASTEGATE 134 EXTERNAL WASTEGATE 135 MAIN WIRING DIAGRAM ALTERNATIVE 136 MAIN WIRING DIAGRAM 137 ...

Страница 8: ...lation Make sure you have these items on hand before you begin to avoid frustration Contact your Autronic dealer if you have difficulty 4 Do not take any shortcuts Mistakes in the early stages of installation can cause you major headaches later on be it in a few days or a few months time Mistakes or shortcuts will cost you money and frustration in finding and fixing unnecessary problems You have t...

Страница 9: ...e or even better silicone tape from Ray Hall Teflon pipe sealing tape Nylon cable ties Mounting hardware for relay and ECU mounts bolts screws A good quality timing light A personal computer preferably a portable laptop running Windows 95 98 2000 XP with a serial RS232 port USB adapter can be used WARNING Avoid open sparks flames or operation of electrical devices near flammable substances Always ...

Страница 10: ...Relay for Injectors and Fuel Pump Bosch type 0 332 014 150 or similar i Throttle Position Sensor optional j Idle Speed Motor optional k Lambda Sensor for CLC optional 2 Mounting Devices a Locate a suitable location for the ECU Ensure that the loom will reach the necessary part of the engine and mount the ECU b Locate a suitable place for the main relay 3 Run the loom into the engine bay but leave ...

Страница 11: ...still give crank position g Connect the cam sync sensor The cam sync sensor can be a hall sensor type or a inductive type See in this manual crank and cam sensor set up for detailed wiring and setup Make sure only shielded wires are used if using inductive sensor If using distributor a No1 spark plug pickup can be used instead of the cam sensor to give the synchronisation pulse to the ECU h Connec...

Страница 12: ...r the battery or is well protected from damage to its insulation Short circuits on this wire can lead to fires 7 Ensure the ignition modules or CDI and fuel injectors are disconnected at this stage 8 Connect the ECU to the loom and connect a laptop computer to the serial DB9 connector RS232 If using a USB to serial adapter make sure the comport are set up correctly in the Autronic software Proceed...

Страница 13: ... temperature sensor is a Bosch standard type of sensor and some engines may already have provision for this type of sensor The coolant temperature sensor is designed to screw into a threaded hole and protrude into the engine coolant stream For air cooled engines the sensor can be embedded directly into the engine block or used to sense oil temperature Locate a suitable position on the engine which...

Страница 14: ... Autronic NTC sensor can be used and should be setup in the software under I P Analogs The sensor should be mounted to provide the best representation of the actual temperature of the air entering the combustion chamber i e after any turbo or supercharger and intercooler and as close to the head as possible The sensor needs to be in the moving air stream to give fast response times and reduce heat...

Страница 15: ...rottle is opened and closed When you have found these test from each one of these to another terminal until you find the two terminals that the resistance decreases as the throttle is opened Example Throttle closed resistance 4 2 K ohms Throttle open resistance 1 2 K ohms When you have found these you are testing across the TPS supply and TPS signal The other terminal is the TPS ground The electri...

Страница 16: ...f the butterfly sensor assembly is serviced or replaced You also can configure the TPS input under I P Analogs in the software Ignition Modules The ignition modules should be mounted on a flat surface to ensure proper heat dissipation and avoid stress on the wiring connections It is also important to prevent the modules overheating by mounting it away from hot components such as exhaust manifolds ...

Страница 17: ...4 and be configured under A F Ratio menu I P Analogs Crank and Cylinder Reference Wiring The SM4 is capable of being triggered by magnetic uses internal reluctor and digital trigger like Hall Effect and optical The Hall Effect or Optical trigger requires power 5 12 Volts signal and ground If using magnetic triggers you must use shielded wires se wiring diagram at the end of this manual for wiring ...

Страница 18: ...5 I P Cylinder ve signal Hall or Optical trigger Red Pin 26 I P Sync ve signal Hall or Optical trigger Red Ground Hall trigger using sheild ground SM4 pin Name Colour Pin 25 I P Cylinder ve positive ve for magnetic trigger Red Pin 40 I P Cylinder ve negative ve for magnetic trigger Black Pin 26 I P Sync ve positive ve for magnetic trigger Red Pin 41 I P Sync ve negative ve for magnetic trigger Bla...

Страница 19: ...r to make sure you use correct wire Wiring Injectors The injector wires are clamped together 10 wires the two brown wires are 12 volt power and should be split to all injectors The injectors should be wired in ignition firing order Write down your firing order on the main wiring diagram this makes it easy to wire the injector output to the injectors The injector output sequence can be adjusted in ...

Страница 20: ... SPEED 1 I P BLU 31 INJ 3 O P BLU WHT 11 TRIGGER SUPPLY RED BLK 32 INJ 2 O P ORG BLK 12 OUTPUT 8 TACHO GRY BLK 33 IGN 4 O P RED WHT 13 OUTPUT 6 BLU 34 OUTPUT 2 STEPPER BLK WHT 14 PWM 2 O P BRN WHT 35 OUTPUT 4 STEPPER BRN BLK 15 12V SUPPLY I P RED 36 5V TPS SUPPLY O P RED WHT 16 INJ 4 O P GRN WHT 37 O2 I P BLU 17 NJ 1 O P I PNK BLK 38 ANALOG 2 3 I P GRN BLK 18 INJ 6 O P SW1 BLU BLK 39 HIGH SPEED 3 ...

Страница 21: ... 4 AMP INJECTOR 6 O P ON IS SHORTED TO GROUND 4 AMP INJECTOR 7 O P ON IS SHORTED TO GROUND 4 AMP INJECTOR 8 O P ON IS SHORTED TO GROUND 4 AMP PWM 1 O P ON IS SHORTED TO GROUND 3 5 AMP 9 5 1200HZ PWM 2 O P ON IS SHORTED TO GROUND 3 5 AMP 9 5 1200HZ OUTPUT 5 ON IS SHORTED TO GROUND 2 5 AMP OUTPUT 6 ON IS SHORTED TO GROUND 2 5 AMP OUTPUT 7 ON IS SHORTED TO GROUND 3 5 AMP OUTPUT 8 ON IS SHORTED TO GRO...

Страница 22: ... to USB adaptor Windows software only One 3 5 floppy disk drive Installing Autronic Software Step 1 Start Windows Step 2 Place floppy disk in A drive Step 3 Click on the Start button and then click on Browse Step 4 Select the A drive and double click the file on the A drive Step 5 Click the OK button Step 6 Read the options displayed and click the Next buttons to complete the installation Step 7 D...

Страница 23: ...f the menu item e g Alt 1 will open the M1 menu Real time display of engine parameters are displayed below open tables The items displayed can be selected from the PC Limits Log setup under the Logger menu The User ID Error bar will turn red and display any error or engine parameters outside the limits set in the PC Limits Log setup under the Logger menu These limits can be set so you do not have ...

Страница 24: ...he Y Axis in the Base Fuel table to Throttle Position under the M2 Table Axis setup menu under the M2 table at the top of the screen You can also use this setting for engines with adjustable camshafts like VVT VTEC or Vanos Also on turbocharged engines with wild camshafts and all other engines where you want to map the fuel delivery against throttle position and ignition against manifold pressure ...

Страница 25: ...pression Ratio It is important that you set the correct Compression Ratio for the engine The engine s compression ratio affects the mathematical model of the engine created behind the scenes in the Autronic software An engine s compression ratio has a direct effect on its Volumetric Efficiency and if the wrong ratio is selected it is difficult to get the proper correction factors needed for the so...

Страница 26: ...nt to open the tables called Injectors under the M1 Tab at the top of your screen In this menu you will select the type of injectors you will be using from a very large list Each injector in this list has been carefully mapped for the correct control strategy based on its electronic characteristics as battery voltages change It is important to choose the correct injector for optimum system perform...

Страница 27: ...overall fuel trim to get the engine running smoothly 4 Calibrate the throttle See Throttle Limit Learning in this manual 5 Before starting the engine check the on screen real time engine data to see if everything makes sense e g air and water temperatures are correct throttle position is linear from 0 to 100 Starting the engine 1 Start the engine Check the analyser to see the air fuel ratio is bet...

Страница 28: ...c balancer Do the same for third coil pack placing three marks With the injector connectors disconnected or the fuel pump disconnected use a timing light connected to No1 spark plug and crank the engine you should see only one mark on the harmonic balancer If you see two or three marks you have the ignition output sequence wrong Swap the ignition output connectors in the SM4 harness connector or u...

Страница 29: ...l up transient power zone This zone is a bit tricky The engine will in this zone spool up the turbo very quickly That leads to fuel starvation Some of the starvation can be handles by TPS acceleration enrichment On the SM4 there is much more sophisticated methods to counter the starvation with rpm rate and boost rate enrichment tables and with chip version 1 09 we also have the transient enrichmen...

Страница 30: ...here the engine is transient in and out of overrun Using overrun fuel shut off on a high power turbo engine is nearly a must since high rpm overrun is the place where EGT can rise dramatically Either the engine must have fuel cut off or being rather rich fuelled Care must also be taken for large injectors not being able to fuel properly with small injector openings on the vaccum line Coasting zone...

Страница 31: ...ded A F ratio was When you type in the recorded A F ratio and press Enter the software will compare this value to those set in your Target table and then calculate the correct value for your Base fuel table and automatically set tune that number in the cell on the table To use the PC logger press F8 to start recording and F8 to stop To display the data log then press F10 To switch between the data...

Страница 32: ...the Target A F ratios for each cell in the base fuel table you encountered during the run and will display the values for each cell as a comparison If a cell is coloured RED it means the A F values were very inaccurate and it will show the actual A F ratio VS Target and how many times it sampled this reading If a cell is coloured YELLOW it means the A F values were slightly inaccurate and it will ...

Страница 33: ...start or stop the Auto Tuning process Then simply hold then engine in one load RPM cell at a time and the ECU will automatically sample the A F ratios and compare them to the Target A F ratio and then make changes to the values in the cells until the correct A F values are found Once a cell is tuned close to its accuracy point it will turn Yellow When it is tuned to be within the accuracy set poin...

Страница 34: ...Fuel Axis Y to Throttle position Do not use Baro TPS under Menu Base Settings since this is only for naturally aspirated cars After selecting Throttle as y axis you may delete the market load axis in fuel table they are not used RPM Load 0 1000 2000 3000 4000 5000 0 1 3 5 10 30 70 100 Base Fuel Delivery table The Base Ignition Timing table should use load sites for pressure mapped engines Setting ...

Страница 35: ...th traction control the above settings will be different but this is a good default to get speed input working properly Now you have an accurate speed input for your logging launch control selecting boost table on basis of speed and others 2 Connect a user potentiometer to Analog input 1 and set it up Connect a potentiometer with the resistance 4 7 kiloohms to I P Analog 1 Sensor ground and 5 Volt...

Страница 36: ...ve a Launch control that holds at 4500 rpm and builds some boost pressure 4 Enable GPC12 for use by our Launch Control In menu O P Setup enable GPC12 by setting GPC12 ON No O P In menu M6 GPC12 GPC12 Setup enter the following GPC Setpoint User table J In menu M6 GPC12 GPC12 inhibit enter the following Inhibit variable 1 Disabled Inhibit variable 2 Disabled Inhibit value 0 Inhibit duration 0 In men...

Страница 37: ...lockwise then launch is completely disabled and when turning the pot down Launch will be available Turning the pot further anticlockwise will lower the launch rpm And that s it We have now built ourselves a variable launch control with a potentiometer that both enables disables launch and also sets the launch rpm to between 3000 rpm and 7000 rpm The exact settings of the launch control parameters ...

Страница 38: ...ost valve that bleed off control pressure to add bost Regulating under the membrane with a three way boost valve that proportionally mix between compressed air and atmospheric air to produce a control pressure that is lower than the actual boost pressure to add boost To add to the above strategies an external wastegate offers the following strategy Regulating over the membrane with a three way boo...

Страница 39: ... output on pin 14 This is one of the dedicated PWM output pins and it provides a reliable PWM signal with selectable frequency ranging from 9 5 to 1220 Hz When we have selected the output pin we can go into the properties cell of the output and select 19 Hz PWM frequency which is a good starting point for most of the available boost control valves Boost control O P setup When the boost control is ...

Страница 40: ... nor input switches is used to select between the three Boost setpoint tables the SM4 defaults to use the Boost setpoint 1 table Next two parameters in the menu is Over boost margin and Over boost time These parameters determine when the SM4 will use boost cut to limit the boost pressure and avoid damaging the engine by shutting off the fuel injectors If the actual boost pressure is higher than th...

Страница 41: ...round the wanted Boost setpoint and well within the Over boost margin that otherwise would cause a boost cut to avoid damaging the engine Example log of boost pressure Next step is to configure the Boost setpoint table The procedure is the same for all of the three available Boost setpoint tables Even if you don t use more than one table it is good practice to setup the other two tables with some ...

Страница 42: ...e speed rpm and the Y axis show Coolant temp The values in the table represent wanted boost pressure in units of absolute KPA If we want a boost pressure of 1 5 Bar which is 150 KPA relative we add 100 KPA for the atmospheric pressure to convert the number into absolute pressure in KPA and so enter the value 250 ...

Страница 43: ...etpoint table It is good practice to have at least two rows in the table so we can set a boost curve that is used under normal conditions and another boost curve that is used if the engine is overheated In the example Boost setpoint table in ...

Страница 44: ...t pressure in addition to the basic boost pressure that the wastegate will regulate to without the boost control valve being engaged Basic boost pressure Lets say that the basic boost pressure of our wastegate is 0 85 Bar or 85 KPA relative If we want the boost control valve to be able to control boost pressure to be maximum 1 5 Bar 150 KPA relative pressure then we need to specify a Boost range o...

Страница 45: ...le to zero This is a good starting point This table is the equalizer If we have set the correct Boost range earlier then this is the only table we need to change values in to get exactly the boost pressure we want If we must go back and change the Boost range then we must redo this table after that Boost offset table Correct procedure for testing that the boost control regulates to the wanted Boos...

Страница 46: ...st instead of the wanted 250 KPA And that we got the wanted 250 KPA at 6000 rpm And that we got 250 KPA at 7000 rpm instead of the wanted 240 KPA Then we add 250 235 15 to the cell at 4000 rpm and 250 KPA and then subtract 250 240 10 from the cell at 7000 rpm and 250 KPA 250 KPA is near to 240 KPA Then we extrapolate the values down to 2000 rpm and up to 8000 rpm We leave the value at 6000 rpm sin...

Страница 47: ...SM4 Manual by MRM Racing V3 0 47 Don t forget to change back the cells in the Boost setpoint table to the original values like it was in ...

Страница 48: ...ll rise The effect of that is that the on off throttle response may be a bit jerky It also implies that the fuel consumption will go up slightly due to the extra work for the pistons to push the exhausts out of the cylinders It is beneficial to set up the Boost modifier table similar to the example in Fel Hittar inte referenskälla below Boost modifier table Looking at the example Boost modifier ta...

Страница 49: ...by taking away from the Boost setpoint to prevent detonation damages to the engine The example shows that if the intake temperature rise above 65 degrees the Boost setpoint will start to be lowered At 76 degrees boost is reduced by 20 KPA At 95 degrees it is reduced by 40 KPA And at 100 degrees the boost pressure is reduced by 60 KPA to protect the engine Now we have configured the boost control ...

Страница 50: ...t 1 2 to a value in between the gear ratios of first and second gear Example Lets say that the gear ratio on first gear is 8 78 Kph Krpm and the gear ratio on second gear is 14 79 Kph Krpm 8 78 14 79 2 11 785 Kph Krpm Setting parameter Boost setpoint 1 2 to the value 11 79 will make it so that the Boost setpoint 1 table is used on first gear and that the Boost setpoint 2 table will be used on seco...

Страница 51: ... P Boost SW2 Boost setpoint table switches If both switches are off the Boost setpoint 1 table is selected If I P Boost SW1 is on the Boost setpoint 2 table is selected But if I P Boost SW2 is on the Boost setpoint 3 table is selected regardless of how I P Boost SW1 is set The Boost setpoint tables may be selected by any combination of gear ratio as described in chapter 0 ovan or external switches...

Страница 52: ...CTRL key for possible options Quick save cal F2 key Quick save calibration file Allows the F2 key to save calibration to current selected file This feature only becomes active when You have selected a file to save You then select that file as Quick save cal Compare Open another file to shown the values that are different from the current calibration Values that are different with have a x before t...

Страница 53: ...x Make sure the FIFO is disabled on the windows serial port settings as this makes communication speed faster Windows 98 Do this via the FileCal Communications config click on the advanced button turn off FIFO Windows 2000 XP This is done via My computer properties 1 Device manager 2 Click on Ports COM LPT 3 Click on port using ie COM1 4 Go to properties of COM1 5 Click on Port settings 6 Click on...

Страница 54: ... Options for Enter box 1 2 Multiply the cell by 1 2 1 2 1 3 Multiply the cell by 1 2 1 3 1 2 Divides the cell 1 2 1 2 1 3 Place constant 1 2 1 3 result in cell XYX Adds to cell XYZ XYZ Subtracts XYZ from cell If results are outside the cell will be shown as an error Error can be syntax which means cannot understand what want to do or range which means new data will fall out of range Insert axis In...

Страница 55: ...ft Up Down Copy current focused table value to the right left up down Maths Copy current focused table value to the right Table multiplier Multiply cells by factor When in tagged mode only modifies data from tagged cells Table offset Offset cells by offset When in tagged mode only modifies data from tagged cells Export Import Print Allows data to be exported ie to printer or clipboard or imported ...

Страница 56: ...SV file into the clipboard then can import See format If not then manually edit the file until it fits the format Format Expects import data to be the following format Line 1 Header 2 X items Comma 3 Y items Comma 4 0 Comma X axis X item Comma 5 Y axis data Comma Data Comma 6 Rest of table rows Print Prints page Export to clipboard Sends page data to the clipboard In a format that s easy to past i...

Страница 57: ... left up down View table Can view the table in different views Can zoom the table to see more detail Can view as table or graph Zoom Table V key Zooms table to full screen with out live data detail View table G key Converts table to 3D graph or graph 3D to table Find site Finds the site that engine is running at Table running value Input the axis values and software will return the table running v...

Страница 58: ...rpolating Linear top to bottom Linear interpolates from top to bottom When in tagged mode only modifies data from tagged cells When in tagged mode uses the last tagged cell as basis for interpolating EXP left to right Exponential function left to right You can select the gradient for this When in tagged mode only modifies data from tagged cells When in tagged mode uses the last tagged cell as basi...

Страница 59: ...e between the two modes by pressing 3 Makes it easy to zoom line you want to full screen quickly Lines 1 42 4 key Plots data points that are specified in the Colors ranges menu that are on line 4 or displays line 1 line 2 line 3 and line 4 on the graph You toggle between the two modes by pressing 4 Makes it easy to zoom line you want to full screen quickly Graph color spans Options 1 Select items ...

Страница 60: ...urrent page only Start End of record CTRL Home END key Jumps to start or end of page 1 Center graph Space key Center cursor to centre of page Page forwards backwards Page DN Page Up key Jumps cursor 1 full page forwards or backwards View complete record V key View complete graph record so can see all the data over the logged time span Useful when want to see the whole data quickly When pressing th...

Страница 61: ...y Plots data points that are specified in the Colors ranges menu that are on line 3 or displays line 1 line 2 and line 3 on the graph You toggle between the two modes by pressing 3 Makes it easy to zoom line you want to full screen quickly Lines 1 4 4 key Plots data points that are specified in the Colors ranges menu that are on line 4 or displays line 1 line 2 line 3 and line 4 on the graph You t...

Страница 62: ...nitor Virtual dash Insert instrument Insert key Insert an instrument They can be a Normal Bar graph Dial or stripchart Delete instrument Delete key Deletes a focused instrument Edit instrument E key Edits a the focused instrument Can change it from a dial to a stripchart Open screen layouts Opens exiting screen layouts The preview screen shows how the screen layout looks Crosses across the instrum...

Страница 63: ...t Window Virtual drive Insert instrument Insert key Insert an instrument They can be a Normal Bar graph Dial or stripchart Delete instrument Delete key Deletes a focused instrument Edit instrument E key Edits a the focused instrument Can change it from a dial to a stripchart Play Space key Plays or stops the virtual drive Forward Backward Right Left key Move forward or backward in time Start End o...

Страница 64: ...To graph an item you create a strip chart Limits adjusted here has no effect on the PC warnings selection menu Menu M0 User ID String User ID string is shown on top of screen This is saved inside ECU calibration program Store cal in ECU Make changes permanent inside ECU The F4 key is the shortcut to this feature If you have saved the calibration to disk before this then can always load the calibra...

Страница 65: ...is is the default window when ECU goes on line Press ALT or escape key to access menus Monitor Engine Monitors ECU ENGINE variables This gives a slower Packets sec rate as all request variables must come from ECU Useful when ECU is password protected or want to monitor a variable quickly Want to check what the throttle volts is in volts as compared to percent When ECU is password protected some li...

Страница 66: ...ger menu for more information When exiting screen the current screen layout will be saved as PCDASH SCR When ECU is password protected some live data parameters will read zero WARNING Range of instruments is changed under Graph colors spans but the warning limits it under the PC warnings select Graph colors spans will not give ANY warning if data goes out of that range Menu M1 Base Settings Primar...

Страница 67: ...lear Flood TPS Clear flooding throttle limit Amount of throttle opening required beyond which no fuel is injected during cranking Default 90 0 Stoic A F Ratio Stoichiometric air fuel ratio The exact air fuel ratio to completely combust a fuel Used by CLC Closed Loop Control Default Petrol engines 14 7 Ignition Setup Ignition Ouputs When creating custom firing order angles start with the closest ty...

Страница 68: ...ith three double ended coils O P 1 4 6cyl Mux Six cylinder engine with six coils and Multiplexer O P 1 1 8cyl SC Eight cylinder engine with a distrubtor and single coil O P 1 4 8cyl WS Eight cylinder engine with four double ended c Ignition Trigger Edge Options are ve edge DWELL ve edge DWELL ve edge PULSE ve edge PULSE For coils with internal igniter modules or If using external dumb modules sele...

Страница 69: ...ell setting for this table then see the How to find the correct dwell time under Dwell in this manual COIL TYPE TYPICAL CHARGE TIME COIL ON PLUG 1 8 MS DUAL POST COIL 3 5 MS SINGLE STANDARD COIL 2 5 MS SINGLE FAST CHARGE COIL 2 0 MS Ignition coil dwell time table Dwell can be setup based on engine rpm and up to 14 other Y axis parameters See M1 Table Axis Setup The default for the Y axis is Batter...

Страница 70: ...TFI Mitsubishi special Mitsubishi EVO 1 9 Subaru 1994 00 Subaru 2001 05 Pre scalar Pre Scalar EFP divider factor Number of teeth per engine cycle divided by Trigger events cycle Example 60 minus 2 trigger 4 stroke 4 cyl 60 2 4 30 60 minus 2 trigger 2 stroke 6 cyl 60 1 6 10 Typical 60 tooth 4 stroke 4 cyl 30 5 cyl 24 6 cyl 20 8 cyl 15 10 cyl 12 12 cyl 10 36 tooth 4 stroke 4 cyl 18 6 cyl 12 8 cyl 9 ...

Страница 71: ...with missing teeth once per engine cycle Cylinder Sensor Cylinder sensor type 1 Reluctor Sensor polarity must be as follows On plus input pin wave should rise first then fall through trigger point 2 2 Hall Connect sensor to ve input pin only No connection to ve input pin allowed Either shorten ve input lead back to shield or cut wire near connector pin All two wire sensors are magnetic Some three ...

Страница 72: ...e near connector pin All two wire sensors are magnetic Some three wire sensors are also magnetic Three wire sensors with power supply are Hall Effect Sync trigger edge Sync trigger edge 1 Rising 2 Falling Sync I P signal Enabled If no sync I P signal ignition is inhibited Multi coil engines needs a sync I P Disabled Single coil engines will run with no sync I P However the injection angle will be ...

Страница 73: ...anual Two different I P channels can use same analog input pin some I P channels can have different thresholds for turning on off functions at a specific voltage When selecting an input channel some functions will be available through other menus like I P Traction control launch control WOT and more Some auxiliary functions may also need to be configured under O P Setup to be available like Anti L...

Страница 74: ...els have selectable thresholds if set to 50 the channel switch at 2 5 Volt I P analogs are 0 5 volt 0 ground and 100 5 volt If set to 20 it will switch at 1 0 Volt If you want a I P function that is off at 0 to 1 0 volt and on at 1 1 to 5 0 you select threshold 20 and Inverts the I P if not inverted it will be on 0 to 1 0 volt and off at 1 1 to 5 0 The I P GP functions can be used to store variabl...

Страница 75: ...re submenus like PWM Stepper and if selecting Multi select O P for increased output current Move to the right with Arrow key and press Enter for editing the submenus Most outputs pull to ground when enabled but the Ignition outputs if available and stepper outputs are push pull type and switch between 12 Volt and ground when inhibited or not used they are potential free See Output Channel Electric...

Страница 76: ... output and table look like above the output result would be like this Tip If using a Push Pull output Stepper Ignition O P and invert you can use it for supplying power instead of ground as most outputs to a Shift light Error light Fan relay or others that needs power 12 volt instead of ground As said earlier the Push Pull type switch between 12 volt and ground when inhibited or not enabled the o...

Страница 77: ...aro Setup also EBP Setup also Other general purpose analog I Ps Oil pressure Oil temperature Fuel pressure Fuel temperature Exhaust temperature Diagram displaying Offset Span when using function Linear Note that each A D channel only can have one setting like threshold span offset or Linearization table If you adjust the A D channels input see below It will affect all other Analogs that use same A...

Страница 78: ... compensated for over the life of the engine The above procedure need only be repeated if the butterfly sensor assembly is serviced or replaced I P Air Temp Input air temperature sensor Options Autronic standard Pre defined lookup NTC Pre defined lookup Linearization 1 4 Uses linearization tables 1 4 Linear Custom span and offset for linear sensor I P Coolant Input air temperature sensor Options A...

Страница 79: ...aro sensor then ECU can estimate the baro pressure by specifying the pressure drop across the butterfly Recommended when throttle pressure mapping a non turbo engine NOTE Ve number disables correction I P Analog 1 4 Setup an analog channel to be linearization and then written to the destination channel Some sensors need pull up resisters Make sure reading is correct for the whole span of the analo...

Страница 80: ...by 8 NOTE1 External reluctor sensor setup Sensor polarity must be as follows On plus input pin wave should rise first then fall through trigger point NOTE2 Vehicle speed I Ps recommended 6 teeth per rev HSI scale factor I scaling factor Scales I pulse inputs I P I as Disabled Scale not used Cam position Set to 1 0000 Road speed Meter Pulse or Wheel circumference meters divided by number of pulse p...

Страница 81: ...internal C L and open loop lean hwy highway see below For ECU internal C L to work you need to have a O2 sensor connected to the SM4 and configured under I P ANALOGS I P A F Ratio CLC only operates when the engine is no longer in warm up enrichment The highway mode is optional and can be selected in the software set up Highway mode is achieved when the ECU logic determines the engine is in highway...

Страница 82: ... are used as a backup in case of sensor failure Setup limp home tables 1 Manifold pressure 2 Throttle position TPS 3 Exhaust back pressure EBP Coolant temperature limp home is setup under I P Analogs I P Coolant Limp home Manifold Calibration table that allows the throttle position sensor to act as a back up in the event of a pressure sensor failure thus ensuring almost normal engine operation Thi...

Страница 83: ... known setup Now edit the angles at each TDCs to suit your engine N O T NOTE FOR STAGED INJECTION TURN INJECTORS ON OFF BY SETTING INDIVIDUAL CYLINDER TRIMS TO 61 7 FOR OFF STATE M1 tables axis setup Any table that can have the x or y axis changed are setup here NOTE Some of these axis may be in sub menus Menu M2 Base Fuel Delivery Basic fuel delivery calibration table providing fine 0 1 adjustmen...

Страница 84: ...e is the same as the base ignition timing calibration table above The table comprises a single row using the same engine speed calibration sites as the base fuel delivery table above Overrun ignition timing can be used to set the engine ignition timing on deceleration Adding values similar to the light load values in the main ignition table can soften the transition from normal running and deceler...

Страница 85: ...aner mixtures than an endurance engine RPM Load 1000 1500 2000 3000 4000 6000 30 13 5 13 5 14 7 14 7 14 7 14 7 50 13 5 13 5 14 7 14 7 14 7 14 7 70 13 5 13 5 14 7 14 7 14 7 14 7 90 13 5 13 5 13 5 14 7 14 7 14 7 100 12 7 12 7 12 7 12 7 12 7 12 7 150 11 8 11 8 11 8 11 8 11 8 11 8 200 11 2 11 2 11 2 11 2 11 2 11 2 220 10 8 10 8 10 8 10 8 10 8 10 8 A F ratio table Fuel trims Sub menus contain Individua...

Страница 86: ...ths is 0 2 1 0 0 5 0 1 This will give an AUX Fuel comp 1 1 The X Y axis is setup under Tables axis setup Make sure that engine is already mapped before applying this auxiliary compensation These tables can become a band aid fix if Base fuel delivery table is not mapped properly which creates there own problems Aux Fuel Comp 2 The X Y axis is setup under Tables axis setup Make sure that engine is a...

Страница 87: ... axis is setup under Table axis setup NOTE There are also ignition modifier 4 available under M3 menu Knock Tune You need to enable this function by assigning it an I P before you can use it You assign I Ps under M1 I P switches Knock input sets how the knock detector records errors NOTE Knock detector expects the Tacho O P to be enabled and correct polarity Knock board software must be setup Char...

Страница 88: ...lant temperature changes With in normal warmed up engine running conditions will not effect the A F ratio Contribution example Charge temp estimat 0 Charge temp Air temp Charge temp estimat 100 Charge temp Coolant Higher percentage makes Charge temp more bias to coolant temp The higher the load rpm the smaller the Charge estimate value should be This is because the air has less time to be warmed b...

Страница 89: ...hrottle openings Do not change these values until the fuel and ignition tables have been fully mapped Making changes before all fuel sites are fully tuned can cause confusing tuning problems Accel open TPS X Acceleration open throttle multiplier Sets the amount of additional fuel delivered for increasing throttle openings starting from a part throttle condition Controls the delivery of fuel for ac...

Страница 90: ...tion timing is allowed to retard Can be used in conjunction with above to improve driveability and or reduce exhaust emissions Calibration range 6 2 to 1593 8 Decel TPS dashpot Deceleration throttle dashpot calibration The amount of delay before idle control valve returns the engine speed back to idle speed Ign time const Ignition acceleration and deceleration time constant Ign mod 4 comp Ignition...

Страница 91: ...ry decays away with time to the warm up enrichment value from the table above Calibration range is 1 00 to 3 99 times the base fuel delivery This calibration function is only engine coolant temperature dependent and it uses the same engine coolant temperature calibration sites as chosen for the warm up enrichment calibration table above Do not change values until base fuel table is fully mapped P ...

Страница 92: ...his calibration uses the same engine coolant temperature calibration sites as chosen for the warm up enrichment calibration table above W U accel enrich mul Warm up acceleration enrichment multiplier Calibration multiplier for additional engine coolant temperature dependent acceleration enrichment Calibration range is 1 0 to 8 0 times the warm engine value This calibration uses the same engine coo...

Страница 93: ... 1 Can be setup on engines without idle control valves to maintain idle speed when A C or transmission is engaged Example Required idle RPM 800 Engine speed Rpm 750 800 2000 3000 IGN Deg 30 10 10 30 If while the engine is idling at 800 RPM the A C was switched on the engine RPM would drop only slightly as the additional timing at 750 RPM would stop RPM dropping The additional timing at 3000 RPM wi...

Страница 94: ... on battery voltage Example Required idle speed 800 RPM Battery voltage Volts 12 00 13 50 RPM 1000 800 The engine would idle at 800 RPM when battery voltage is 13 5 volts or higher If battery voltage drops to 12 0 volts the idle speed will increase to 1000 RPM Idle ignition setup Idle table select Select idle ignition timing table Options Disable Does not use the idle ignition table Idle ignition ...

Страница 95: ... 2 Stepper O P stepper Bosch 2 wire Standard Bosch 2 wire O P is PWMs USER DEFINED Define your own calibration for IAC valve The IAC Actuator cal will appear in the main menu This is an advanced calibration IAC Dead band IAC dead band Typical 40 Slow adapt rate Slow adaption rate Higher value faster to target rpm to high it will oscillate Typical 1200 Slow adapt rate no F B Slow adaption rate no f...

Страница 96: ... function Helps give higher resolution NOTE This may increase the wear rate of some stepper motors IAC limits Sets the IAC limits This disables IAC control on particular situations IAC TPS follower This uses the IAC valve to try and give the vehicle smoother driving Set Follower gain to 0 to disable IAC TPS follower Follower Gain Set to 0 to disable this function Large value causes quick decay Typ...

Страница 97: ...it Smaller values can make for less drive line noise on deceleration Typical setting 120 Stopped RPM decay Rpm sec that IAC valve tries to follow when the vehicle is stopped Large value Causes quick return to the base idle speed Typical setting 20 IAC Actuator Cal Only available if selected User defined in IAC Tuning Actuator type You have to work out the actual idle valve percentage with regard t...

Страница 98: ...cted y axis Setup under Table axis setup Three turbocharger wastegate control calibration tables are available The tables allow engine speed and engine coolant temperature dependent settings of the boost level controlled by the boost control function The coolant temperature dependency of the table if used allows boost to be reduced at elevated engine coolant temperatures in order to minimise the p...

Страница 99: ...ables Example Boost can be reduced on high inlet air temperatures or made throttle position dependent X and Y axis can be setup under M5 Table axis setup ECU limits setup ECU limits setup Rev limiter Hard cut H all injector or all ignition outputs are cut Softcut S one injector or one ignition output are cut at a time Increasing the number of injectors or ignition outputs that are cut until the en...

Страница 100: ... for over run throttle and load limit setting OverRun shutdown recovery Over run shutdown recovery The engine RPM below which over run shut down disabled Typical value would be 1400 RPM The engine RPM below which the injectors restart Rev limiter 1 Engine rev limiter Set engine RPM limits against engine temperature Example Coolant temp Deg C 0 0 70 115 120 RPM 4000 6500 6500 2000 In this example t...

Страница 101: ... pattern Pattern bits are for each cylinder 87654321 0 Off 1 On Default pattern for cylinders is Cylinders 87654321 11111111 Pattern 1 This value only 11111111 Pattern 2 This value only 11101110 Pattern 3 11101110 Pattern 4 10101010 Pattern 5 10101010 Pattern 6 10001000 Pattern 7 10001000 Pattern 8 00000000 Pattern 9 This value only 00000000 Pattern 10 This value only Anti lag setup You need to en...

Страница 102: ...Knowledge of the maximum safe working temperature of the turbo charger turbine is essential A turbo tacho and a pressure gauge to measure the turbo compressor outlet pressure are also useful tools to assist in the setup of anti lag IMPORTANT 1 Irrespective of the actual throttle opening used the ECU must be reset so that the selected open is seen by the ECU as 0 open Throttle limit learning must b...

Страница 103: ...ternal solenoid will close shut off Anti lag coolant max Temperature below anti lag will work when above this anti lag will shut off directly Anti lag TPS min Throttle position below this disable anti lag when below this anti lag will shut off directly Anti lag rpm trig Rpm above which anti lag is enabled if using external switch for turning on anti lag this setting is still effective If the engin...

Страница 104: ...ded at higher RPMs Spark plugs normally remain clean even during extend periods of cool down idling Traction ctrl setup You enable this function by assigning it an I P before you can use it You assign I Ps under M1 I P switches You also need to set up the vehicle speed inputs M1 I P HSI Traction ctrl tune You enable this function by assigning it an I P before you can use it You assign I Ps under M...

Страница 105: ... speed below which allows launch control Launch RPM Rpm that launch begins at Launch rate When in launch mode will ramp the Launch revlimit from the Launch rpm at the Launch rate Rpm sec until launch is terminated Launch ends If launch is active will be terminated above this vehicle speed Launch retard Timing subtracted from the ignition timing during Launch control Can help building boost on a tu...

Страница 106: ...hift duration Time that WOT cut mode is applied for Larger then 2 00 seconds is continuous while switch I P is closed WOT shift retard Timing subtracted from the ignition during WOT Typical 10 0 20 0 degrees M5 tables axis setup Any table that can have the x or y axis changed are setup here Some of these axis may be in sub menus ...

Страница 107: ...es are logical 2 Select an O P PWM type under M1 O P Setup 3 Setup GPC setup setpoint and feedback variables and the GPC name 4 Setup GPC inhibits 5 Setup GPC Setup table and GPC table 6 Tune PID loop GPC Tune GPC 5 13 General purpose control On Off type These tables are general On Off types These are not PID types They cannot have tunable feedback with these GPCs To setup an on off 1 Select an O ...

Страница 108: ...or standard fuel switch NOS extra fuel Extra fuel percent NOS threshold RPM RPM above that NOS is activated NOS threshold LOAD LOAD that will activate NOS LOAD can be either throttle or manifold pressure NOS ign retard Retard timing that is subtracted from the ignition timing O P Fuel used Select O P and polarity under M1 O P setup Number of seconds per litre of fuel injected This output signal ca...

Страница 109: ...ers will read zero This has no effect on graph limits Some variables may have limits which are lookup tables See PC Warnings options on how to auto load limits from ECU or calibration file PC Warnings options 1 The PC warnings can be read from a special ECU specific file Non user readable Typical Enabled 2 PC warnings can be read from the calibration file Calibration files contain the warning limi...

Страница 110: ...ings select menu Status of PC logger is on bottom left of screen PC Logger Armed Read to start logging Running Logger is running NOTE To save the PC logged data press F10 which opens a graph window Save graphed data under Edit Window Save logged file menu PC Error history When errors are flashed at top right of screen they are recorded so can be viewed later The last error of the family is always ...

Страница 111: ...to log select them in the PC warnings select menu Shows how many HOUR MINUITS SECONDS has been recorded You save the PC logged graph press F10 and see Edit Window Save logged file If table opened with same axis variables as logged data then an orange cursor shows the table position PC Strip chart SEE EDIT WINDOW FOR STRIP CHART OPTIONS Shows a strip chart to the screen which can be time or XY Item...

Страница 112: ... XY plots with filters Histograms if logged LOAD Throttle A F ratio can create mixture plots Mixture plots are shown as text graphical form From mixture plots can correct Base fuel delivery table via the F5 key See Edit window for more details If table opened with same axis variables as logged data then an orange cursor shows the table position To jump to graph TABS press L go forward K go backwar...

Страница 113: ...y time the ignition is switched on RPM Only Logger will start logging when specified RPM is exceeded o TRIGGERS ONLY WORK WHEN OFF LINE Total log time is displayed in 00 00 00 Hours Min Sec Retrieve log data Retrieve data logged data from ECU Retried data will be saved to file Use Open logged file from the file menu to view the data Data log files can be re run in Virtual drive Manual logger ctrl ...

Страница 114: ...decreases in table value Shift Make large increases in table value Shift Make large decreases in table value Delete Delete a axis value e g RPM or Load axis value Insert Insert a axis value e g RPM or Load axis value E Edit axis value Shift Right Copies a site value to the right of current site Shift Left Copies a site value to the left of current site Shift UP Copies a site value to the above sit...

Страница 115: ...perial units T h This assumes a brake specific fuel consumption of 1 50 The actual fuel flow necessary by injectors and pump are likely to exceed a figure derived this way This is due to the overheads in injector dead time and pumping return fuel to maintain regulation A nice help program called Injector Size exe can be downloaded from http www autronic com Injector Flow Capacity If you are using ...

Страница 116: ...as the flow rate of the pump decreases with output pressure Power the pump for one minute and calculate the hourly fuel flow rate of the pump Since the pressure regulator operates on a return system there should always be fuel being returned to the tank even when fuel flow to the engine has reached its maximum If this fails to happen the fuel pressure will fall out of regulation Therefore the fuel...

Страница 117: ...form the dwell control or charge time of the ignition coil The signal from SM4 determines the charge time of the coil and tries to maintain the specified charge time from the Ignition Dwell table at all engine speeds Example of dumb ignitions modules Single type Bosch 0 227 100 124 Triple type Bosch 0 227 100 203 and 0 227 100 209 Quad type Bosch 0 227 100 211 Typically charge time is 2 5 ms for n...

Страница 118: ...n system is idle When the voltage goes to 12V the coil is being charged when the input returns to 0 V a spark is fired and the coil then sits idle until the input voltage to the ignition module is again raised to 12 Volt Falling spark edge 70 30 Duty cycle for smart ignition module and Autronic CDI Rising edge triggered Some ignition modules like Honda and MSD CDI are known to be rising edge trigg...

Страница 119: ...the lost energy in ringing This break time is normally 0 7 to 1 5 ms long See figure below Direct Fire CDI Autronic 500R The Autronic CDI has four channels these can be used in any order To save any confusion during wiring it is best to keep the CDI input and sequence 1 2 3 4 and the output sequence the engine firing order A good way to do this is to write down the SM4 Ign O P sequence CDI trigger...

Страница 120: ...IL 4 VE 3 COIL 3 4 VE 4 TRIGGER 3 I P 5 TRIGGER 1 I P 6 TACHO O P 7 COIL 1 VE 8 COIL 1 2 VE 9 TRIGGER 4 I P 10 TRIGGER 2 I P 11 POWER SELECT GROUND FOR HIGHPOWER 12 IGNITION SWITCH I P 13 COIL 2 VE 14 GROUND KEEP SHORT AND TWISTED 15 GROUND KEEP SHORT AND TWISTED 16 TRIGGER GROUND NOT USED 17 12 VOLT BATTERY 18 12 VOLT BATTERY Note The ve and ve coil wires should be twisted and keep away from any ...

Страница 121: ...ard facing arrow An upward arrow would indicate that the trigger edge is the transition from low to high and is called rising edge If the trigger edge is the transition from high to low it will be shown as a downward facing arrow and called falling edge For the SM4 to operate correctly a trigger edge must be generated This trigger edge must occur a fixed number of degrees before top dead centre BT...

Страница 122: ...ype of pickup has two wires one positive one negative or three wires with the third being shield Sometimes the wires are marked as such but more often than not they are unmarked Below is an example from a Bosch trigger found on Volvo BMW Opel and more If you cannot tell which wire is the positive from markings or wire diagrams then it would be necessary to check the signal going into the SM4 with ...

Страница 123: ...omplete engine revolution cycle 720 degrees two crank turns one cam turn This will give the following table for the cylinder pulse trigger Cylinders Tooth on crankshaft Tooth on camshaft 1 N A 1 2 1 2 4 2 4 5 N A 5 6 3 6 8 4 8 10 5 10 12 6 12 16 8 16 One pulse per TDC tooth table Warning An incorrectly wired reluctor will retard ignition timing as the RPM increases or generate multiple triggers If...

Страница 124: ...nic Trigger Motronic trigger are a type of multi tooth trigger but are distinct in that they use a missing tooth The Motronic wheels that are supported by SM4 are the 60 teeth with 2 missing and 36 teeth and 1 missing tooth Motronic 60 2 wheel Note some motronic sensors may be Hall Effect type which give out square wave signal others may be inductive sensor and should use internal reluctor adapter...

Страница 125: ...SM4 Manual by MRM Racing V3 0 125 ...

Страница 126: ...lses each representation of 2 deg engine movement The other consists of the same numbers of pulses as there are cylinders Replace the trigger disc to a new with same numbers of pulses as there are cylinders cylinder pulse and one pulse for cylinder reference With the 1 09 chip the stock trigger disc can be used in conjuction with a diode consult your dealer ...

Страница 127: ...rs have two FUNCTION SELECT and two SET buttons These are used to make changes to the default settings They are also used to calibrate a UEGO sensor and restore factory default settings Pressing all four buttons at the same time will reset all functions to factory defaults The B Model analyser can air calibrate the UEGO sensor by pressing the two set buttons when AIR is displayed ...

Страница 128: ...AF_A Air fuel ratio Alcohol Methanol Function 7 Use to test Analog output voltage The three options are 0 1 or 2 These settings can be used to see if the software span and offset for the analog 02 input are correct 0 to 1 volt output 0 0 volts 10 1 A F ratio 1 0 5 volts 20 1 A F ratio 2 1 volts 30 1 A F ratio 0 to 5 volt output 0 0 volts 10 1 A F ratio 1 2 5 volts 20 1 A F ratio 2 5 volts 30 1 A F...

Страница 129: ...anking Some vehicles disconnect power to accessory devices during cranking to minimize power draw from these devices Check the trigger wiring If you have access to an oscilloscope then check the input to the SM4 Check that the software is setup correct under I P Crank Cyl If using magnetic triggers make sure you use shielded wires and that the polarity is wired correctly No Spark or Injection puls...

Страница 130: ...Each time the ECU is activated ignition on previously detected HISTORY or old error conditions are indicated After the completion of the HISTORY error codes error codes are displayed as the errors are detected An error code will remain stored in ECU memory until the fault is repaired and the engine is warned up from cold to normal operating temperature 20 times This error memory feature allows the...

Страница 131: ...ANT TEMPERATURE I P 23 BAROMETRIC PRESSURE 25 VEHICLE SPEED 26 OVER BOOST ERROR 31 MAP SENSOR I P 34 REF PULSE I P MISSING 35 OIL PRESSURE 41 EXHAUST BACK PRESSURE I P 43 REF PULSE ERROR WHILE ENGINE IS RUNNING 44 OIL TEMP 45 FREE FOR PERSONAL USE 53 SUPPLY OVER VOLTAGE ERROR 54 FREE FOR PERSONAL USE 61 FUEL PRESSURE 62 FREE FOR PERSONAL USE 63 FREE FOR PERSONAL USE 73 POWER FAIL DETECTOR CONTACT ...

Страница 132: ...30 000 RPM 0 TO 16 000 RPM 0 TO 15 000 RPM ENGINES UP TO 4 CYLINDERS ENGINES WITH 5 TO 8 CYLINDERS ENGINES WITH 10 TO 16 CYLINDERS INJECTION DURATION TIMING MIN MAX ACCURACY SETTING RESOLUTION 0 7 MSEC 30 MSEC 10 USEC 1 0 1 APPROX INJECTION TIMING RANGE ACCURACY SETTING RESOLUTION 0 TO 720 GRADER CRANK ANGLE 1 4 DEG 0 3 MSEC CRANK ANGLE 2 8 DEG CRANK ANGLE IGNITION TIMING RANGE ACCURACY SETTING RE...

Страница 133: ...Wiring diagrams Option 1 Uses standard Autronic PC data cable to log using the PC Laptop memory Option 2 Uses ECU memory to record when switch is closed Option 3 The socket required is a double pole single throw stereo socket PC Data Cable Diagram Wiring Diagram ...

Страница 134: ...SM4 Manual by MRM Racing V3 0 134 Boost Control Diagrams Internal Wastegate ...

Страница 135: ...SM4 Manual by MRM Racing V3 0 135 External Wastegate ...

Страница 136: ... 6 AB A6998C DA D E DF D 66 GH G6 5I 51 6 JD J 6 K K L L8 96 F 8C F II Q W 4 Y9 Z G8 69 9 W_Z V8 3 G8 69 D1 IK C D1 I Q 28Z 7 O6 R1 7 925 T 85 R1 7 925 T Q 28Z 7 O6 RP 38 925T 85 RP 38 925T D I D IK F J F J PJ Q 67 O28 GY O28 J 8Z 7 J 2 8 9 6 Z0 569 X27 5 9 5 88 59 7 9 G38292 8 N O 8 9 6 Z Y 7 238292 8 5 8 _ 6 Z 9 Z72 7 7 a G38292 8 N O 8Z N69 69 J 7 O6 4 O6 9 8Z 5 8 6 5677 89 X 28 5677 890 W 54 6...

Страница 137: ... 6 AB A6998C DA D E DF D 66 GH G6 5I 51 6 JD J 6 K K L L8 96 F 8C F II Q W 4 Y9 Z G8 69 9 W Z V8 3 G8 69 D1 IK C D1 I Q 28Z 7 O6 R1 7 925 T 85 R1 7 925 T Q 28Z 7 O6 RP 38 925T 85 RP 38 925T D I D IK F J F J PJ Q 67 O28 GY O28 J 8Z 7 J 2 8 9 6 Z0 569 X27 5 9 5 88 59 7 9 G38292 8 N O_ 8 9 6 Z Y 7 238292 8 5 8 6 Z 9 Z72 7 7 G38292 8 N O_ 8Z N69 69 J 7 O6 4 O6 9 8Z 5 8 6 5677 89 X 28a 5677 890 W 54 69...

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