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Appendix B: LM-1 Cable Pinouts

B1. Serial Interface (Mini-DIN8 female connector)

Serial Interface:

19.2 kBaud
8 Data bits
1 Stop bit
no parity
no hardware handshaking

Pin Assignments

Lambda Meter

Mini-DIN8

Signal

Computer DB-9 Computer DB-25

1 n/c

n/c n/c

2

CTS 8

5

Connected

to

+5V

3 RxD

2 3

4 GND

5 7

5 TxD

3 2

6 GND

5 7

7 n/c

n/c n/c

8 n/c

n/c n/c

B2. Aux Input Connector (Mini-DIN7 female connector)

Note: Connect to signal of maximum 5V only.
Serious damage to meter and/or sensor may result if connected to signals of more than 5V
amplitude.

Pin Assignments

- 25 -

«
...
23
24
25
26
27
...
»

Содержание LM-1

Страница 1: ...sor touch a combustible surface Do not use the sensor with or near flammable liquids or gases Failure to heed these warnings may result in severe burns explosions or fires When installed in the exhaust the oxygen sensor MUST be connected and operating with the LM 1 whenever the car is running An un powered oxygen sensor will be quickly damaged when exposed to hot exhaust gases ...

Страница 2: ...10 9 3 Resetting the calibration data 11 9 4 Updating the software 11 9 5 Changing the sensor type 12 9 6 Programming the analog outputs 13 9 7 Downloading recorded data 14 10 Tips Tricks and Troubleshooting 18 10 1 General measurement requirements 18 10 2 Vehicles with smog pumps 18 10 3 Measuring at the tail pipe 18 10 4 Single Cylinder Engines 18 10 5 Diesel Engines 18 10 5 Reference cell or Pu...

Страница 3: ...hen Lambda is less than 1 the engine runs rich If lambda is greater than 1 the engine runs lean Depending on the engine maximum power is typically delivered when the engine runs slightly rich for example at lambda values of 0 8 to 0 9 for most engines This instrument provides a means to measure the actual air fuel ratio or lambda in the engine in operation directly from the exhaust For this a spec...

Страница 4: ...2 2 Included cables and devices Oxygen Sensor Sensor Cable Power cable Serial Cable Also included 9V Battery Bung Plug set 4 ...

Страница 5: ...e display shows what percentage of the temperature is reached and what the battery voltage is that the meter sees on the power connector The warm up period will last for about 30 seconds for a cold sensor depending on the sensor type used After the sensor is warmed up the meter automatically calibrates the sensor heater controller to the particular sensor During this 20 second period the LM 1 coll...

Страница 6: ...ug the sensor bung when not in use plug included The sensor must be installed in the exhaust pipe at the side or in the top Do NOT install it below the 3 o clock or 9 o clock position Condensation can form in the exhaust pipe and permanently damage the sensor On turbo charged vehicles Install the sensor downstream from the turbo before the catalytic converter The high exhaust pressure before the t...

Страница 7: ...ue is different by more than 0 6 recalibrate You can test the oxygen sensor by breathing on it The oxygen content of your breath will show The sensor MUST be operated in free air for calibration If the wide band sensor is installed in a vehicle wait 6 8 hours after running the engine so that all exhaust gas is dissipated from the exhaust tract of the vehicle Otherwise disengage the oxygen sensor a...

Страница 8: ...in the LM 1 press the Record button The LM 1 will show on its display a blinking R between the lambda and AFR O2 display while recording To stop recording press the Record button again Each time you start recording a new record Session is created A total of 44 minutes of data can be recorded in the LM 1 If the internal memory of the LM 1 is full the blinking R will not show when starting a recordi...

Страница 9: ...d idea to connect the LM 1 permanently to 12V and switch it on before the vehicle is started The sensor would heat up to its operating temperature Depending on the climate and the senor position in the exhaust condensation water can form in the exhaust pipes This condensation water could then be blown by the exhaust stream against the hot sensor when the car is started The resulting heat shock can...

Страница 10: ...ries for the LM 1 Software in the Start Menu of your computer under the heading Innovate Two version of the Software will be installed 1 LM1 Manager Demo 2 LM1 Manager The difference between the versions is that the Demo Version does not require the LM 1 to be hooked up to the computer via a serial port It simulates a connected LM 1 instrument 9 2 Hooking up the LM 1 device to the computer Connect...

Страница 11: ...oftware in the main page Update software for the LM 1 has the extension dld You can download the latest LM 1 software from the Mustang Dynamometer web site at www mustangdyne com If your computer crashes during a download the LM 1 has a recovery mechanism where it will be able to retry the download again and not be disabled by half loaded software Switch the LM 1 off and on again and then try to r...

Страница 12: ...using by removing the 4 screws holding the housing bottom to the housing top 4 Carefully separate the two housing parts Be careful not to stretch and break the battery cable 5 On the main circuit board in the top housing part locate the 8 pin sensor selection header 6 Move the jumper to the appropriate position for your new sensor See picture below The jumper in this picture is shown installed for...

Страница 13: ...e maximum lambda values the output voltages stay constant at the associated programmed voltage By selecting the use Air Fuel Ratio button you can program the curve by AFR instead of Lambda Click the Program button to download the new data into the LM 1 As factory programmed the first output simulates a typical narrow band oxygen sensor The second output is programmed to output between 1 0 V for an...

Страница 14: ... cable The same color is also used in the traces for the data graph described below 2 Input Name Each Input can be renamed into a meaningful name like TPS MAP MAF CT IAT and so on 3 Import Unit When checked the input data is imported as voltage 0 5V or as sample data 0 1023 Right click on the check mark to customize the interpretation of the input data The customization dialog box allows you to se...

Страница 15: ...ton to either download LM 1 Log data or re load a previously recorded log file The log file data format is compatible with the DIF file format that most spreadsheet programs are compatible with Each log data file starts with a header that describes the usage of the inputs To save log data from the LM 1 press the Save button 9 7 2 Importing Input Descriptions As a convenience the input settings fro...

Страница 16: ...l scale of the vertical scaling of the selected input by pressing the or buttons If there is more data that can be shown on the screen you can scroll it into view using the scrollbars or by dragging the graph If a portion of the trace is either above or below the window you can quickly scroll it into view by right clicking at the appropriate time in the graph in which you are interested Right clic...

Страница 17: ...ale or vertical scales for each input expanded as in the window or at their normal scale Check the Print Black and White only button if you do not print on a color printer The Show vertical scales section allows you to select if you want to show the vertical scale on the left of the graph on every page or only on the first one or if you want to show the scales for all traces or only for the input ...

Страница 18: ...able the smog pump by removing its drive belt 10 3 Measuring at the tail pipe On non catalytic converter equipped vehicles it is possible to measure the air fuel ratio at the tail pipe It is highly recommended to use the optional LM 1 Exhaust Clamp Without it too much outside air may enter the exhaust especially at idle to prevent correct measurements and leading to a lean measurement Sticking the...

Страница 19: ...eater calibration data 10 6 Sensor Timing Errors These errors are typically encountered when the sensor does not have outside air available as reference gas If you encounter this error restart the LM 1 and operate the sensor in free air If you still encounter this error the sensor may be bad and needs to be replaced Replacement sensors are available from your nearest VW dealer under the VW part nu...

Страница 20: ...the heater wires to it to keep the EFI computer happy Be careful where you mount the stock sensor as heated sensors will get hot To connect the LM 1 to the EFI computer first determine what kind of narrow band sensor is used then follow the instructions below requires a digital multimeter to determine correct OEM sensor wires a Vehicle has a 1 wire sensor Wire analog output 1 directly to the wire ...

Страница 21: ...as the identical display functions as the built in LCD display and also provides a Record button To use the LMD click on the serial display button on the main screen of the LM 1 Manager The software in the LM 1 will be changed to use the serial display The built in LCD display of the LM 1 will no longer be used LMD is powered by the serial interface from the LM 1 and does not require any other pow...

Страница 22: ...able This cable has 6 screw connectors at one end and a Mini DIN 7 plug at the other end The 6 screw connectors are for the five auxiliary inputs and the sixth one is ground A 3 Auxiliary Input Cable with RPM converter This cable is identical to the standard auxiliary input cable except that it includes a circuit for capturing RPM with inductive pickup from Cyl 1 spark plug wire 0 10 230 RPM A 4 P...

Страница 23: ...LM1 Aux Expander contains four sensors and converters 1 RPM with inductive pickup from Cyl 1 spark plug wire 0 10 230 RPM 2 Thermocouple input for Type K thermocouple wire 3 Dwell Meter 0 100 for Ignition dwell or Injector Timing 4 Absolute Pressure Transducer with variable range 0 14 5 PSI or 0 29 5 PSI In addition it has a Mini DIN7 socket for the Aux Expander cable for those inputs not used or ...

Страница 24: ...A 7 LM 1 Exhaust Clamp A 8 LM1 Wall Transformer Wall Wart Note see Quick start guide or website for current accessory pricing and availability 24 ...

Страница 25: ...s Lambda Meter Mini DIN8 Signal Computer DB 9 Computer DB 25 1 n c n c n c 2 CTS 8 5 Connected to 5V 3 RxD 2 3 4 GND 5 7 5 TxD 3 2 6 GND 5 7 7 n c n c n c 8 n c n c n c B2 Aux Input Connector Mini DIN7 female connector Note Connect to signal of maximum 5V only Serious damage to meter and or sensor may result if connected to signals of more than 5V amplitude Pin Assignments 25 ...

Страница 26: ...sor 5 Input 3 Sensor 1 Input 4 Sensor 4 Input 5 Sensor 2 Input 6 Sensor 3 Input 7 5V from Meter B3 Analog Outputs 3 5mm Stereo connector Stereo plug shown Pin Assignments Lambda Meter Stereo Signal 1 Analog output 1 2 Analog output 2 3 Ground 26 ...

Страница 27: ...B4 Sensor Interface Connector Standard DIN 5 female Pin Assignments Lambda Meter Signal 1 Pump 2 Sens 3 Heater 4 Pump Sens 5 Heater B5 Power Connector 3 5mm power connector female 27 ...

Страница 28: ...n Error 3 Pump cell circuit shorted Error 4 Pump cell circuit open Error 5 Reference cell circuit shorted Error 6 Reference cell circuit open Error 7 General System error typically a software error Error 8 Sensor Timing error typically a damaged sensor Error 9 Supply Voltage too low 28 ...

Страница 29: ... shipped charges pre paid along with proof of purchase and the return material authorization number to the Mustang repair location as instructed by Customer Service Mustang within a reasonable amount of time from its receipt of your product so shipped will ship to you at its option the repaired product or a new or reconditioned product of comparable or greater specified functionality All repaired ...

Страница 30: ...pdated programming section Section 9 2 6 7 9 03 Updated photos 2 7 7 23 03 Update included devices list Section 2 1 Added Warning at first page and Installation section Section 4 1 Update Analog out programming text and screenshot Section 9 6 Update LMD display Section A 5 Update Serial Display Section Section 11 2 2 8 9 03 03 Update copy after the screenshot of the Data Logger Configuration Secti...

Страница 31: ...a Microsoft Templates Normal dot Title Mustang Dynamometer Subject Author Temp1 Keywords Comments Creation Date 9 3 2003 2 22 PM Change Number 4 Last Saved On 9 3 2003 2 25 PM Last Saved By Administrator Total Editing Time 1 Minute Last Printed On 9 3 2003 2 25 PM As of Last Complete Printing Number of Pages 30 Number of Words 6 594 approx Number of Characters 37 592 approx ...

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