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Warranty and Disclaimers 

 

 

WARRANTY 

 

The products described in this manual, with the exception of the lambda sensor, are 

warranted to be free from defects in material and workmanship for a period of one year from 

the date of shipment to the buyer.  Within the one year warranty period, we shall at our 

option replace such items or reimburse the customer the original price of such items which 

are returned to us with shipping charges prepaid and which are determined by us to be 

defective.  This warranty does not apply to any item which has been subjected to misuse, 

negligence or accident; or misapplied; or modified; or improperly installed. 
 

The lambda sensor is considered an expendable part and as such cannot be covered by a 

warranty. 
 

This warranty comprises the sole and entire warranty pertaining to the items provided 

hereunder.  Seller makes no other warranty, guarantee, or representation of any kind 

whatsoever.  All other warranties, including but not limited to merchantability and fitness for 

purpose, whether express, implied, or arising by operation of law, trade usage, or course of 

dealing are hereby disclaimed. 
 
The warranty is void if the control module is opened or the wiring harness is modified. 

 

 

LIMITATION OF REMEDY 

 

Seller’s liability arising from or in any way connected with the items sold and/or services 

provided shall be limited exclusively to repair or replacement of the items sold or refund of 

the purchase price paid by buyer, at seller's sole option.  In no event shall seller be liable for 

any incidental, consequential or special damages of any kind or nature whatsoever, including 

but not limited to lost profits arising from or in any way connected with items sold and/or 

services provided to buyer, whether alleged to arise from breach of contract, express or 

implied warranty, or in tort, including without limitation, negligence, failure to warn or strict 

liability.  In no event shall the company's liability to buyer arising out of or relating to the 

sale of any product or service exceed the purchase price paid by buyer to the company for 

such product or service. 
 

 

PRODUCT CHANGES 

 

We reserve the right to discontinue a particular product or to make technical design changes 

at any time without notice. 

 

 15 

Summary of Contents for AFM1040

Page 1: ...AFM1040 AFM1540 Air Fuel Ratio Combustion Monitor Instruction Manual 02 06 Part Number 1040A 6...

Page 2: ...al may be photocopied or reproduced in any form without prior written consent from ECM ENGINE CONTROL AND MONITORING Information and specifications subject to change without notice AFM1040 and AFM1540...

Page 3: ...utput 5 Changing Sensor Type AFM1540 Only 6 SMB Interface Serial Measurement Bus AFM1540 Only 6 Calibration 8 Fuel Type Compensation 9 Pressure Compensation 9 Specifications and Limits 11 Measurement...

Page 4: ...Supplementary Information 17 ii...

Page 5: ...rial Measurement Bus interface on AFM1540 Can work with Bosch LSU 4 9 LSU 4 2 or NTK UEGO sensor user selectable only with AFM1540 11 to 28 VDC operation2 AFM1040 AFM1540 Components List The following...

Page 6: ...TL UEGO Sensor 1001A 2 3 Wiring Harness 6m or 1002A 3a1 Wiring Harness 3m or 1002A 3b1 Wiring Harness 1m 1002A 3c1 4 SMB PC Cable 2m AFM1500 1500A 16 5 SMB PWR Cable 300mm AFM1500 1500A 17 6 Calibrati...

Page 7: ...put the lambda sensor in a heavily sooting or oil burning engine 5 Use of the lambda sensor with leaded fuels over time may reduce the sensitivity of the sensor 6 Do not use the lambda sensor in a lo...

Page 8: ...bda sensor by lightly coating its threads with a non lead containing antiseize compound and tighten it to 30 3 ft lbf 40 4 Nm Attach the sensor to the wiring harness and route the harness to the contr...

Page 9: ...ally important to make sure that all condensed water is out of the tailpipe before the tailpipe probe is inserted into the exhaust Analog Output The AFM has a 0V to 5V linearized output suitable for i...

Page 10: ...se of AFR O2 and module status can be read from each AFM1540 module The interface supports auto detection of modules The figure below shows an example with three AFM1540 modules connected to a compute...

Page 11: ...e 0 to 400 Ri High Byte 256 Low Byte 10 5h 16 bit Ri Low Byte 6h 16 bit O2 High Byte 0 0 to 4 03 O2 High Byte 256 Low Byte 100 7h 16 bit O2 Low Byte 8h 16 bit AFR High Byte 8 0 to 18 0 AFR High Byte 2...

Page 12: ...cluding a check sum 0x00 0x02 0x18 0x0C 0x00 0xDA This will identify the module as an ETAS LA3 to INCA software Calibration Calibration of the AFM and the lambda sensor can be easily performed using a...

Page 13: ...R for the fuel of H C m and O C p composition AFRmeas is the AFR output by the AFM i e 8 0 to 18 0 AFR m 2p 4 Pressure Compensation All wide range exhaust sensors have a pressure sensitivity Errors oc...

Page 14: ...sured B x P 1 B x P Equation 3b where Lambda corrected the Lambda corrected for exhaust pressure Lambda measured the Lambda output by the AFM B 0 000273 LSU 4 2 0 000271 LSU 4 9 0 000627 NTK rich B 0...

Page 15: ...18X1 5mm Lightly coat with non lead containing antiseize compound Hex Size 22mm Tightening Torque 30 3 ft lbf 40 4 Nm The lambda sensor s thread size is identical to that of most O2 sensors used in pr...

Page 16: ...l Assignments AFM1540 Only Cable from PC to SMB PC Port on AFM1540 Module 6ft P N 1500A 16 DB9 Female to PC Terminal Number DB9 Male to Module Terminal Number 2 Rx 1 3 Tx 2 5 Gnd 6 SMB PC Cable Termin...

Page 17: ...ing confused by noisy power or operating in an electrically noisy environment In some situations a timing light might create a noise problem Keeping the control module and its wiring harness away from...

Page 18: ...a running engine When installing the AFM s cabling and sensor on a stopped engine it is best to think out your moves before you make them Route and cable tie all cables away from hot moving sharp high...

Page 19: ...xpress implied or arising by operation of law trade usage or course of dealing are hereby disclaimed The warranty is void if the control module is opened or the wiring harness is modified LIMITATION O...

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Page 25: ...State Diagram for SMB Communication 21...

Page 26: ...22...

Page 27: ...l files must reside in the same folder Operation 1 Close all active program windows on the PC 2 Connect the SMB PC cable P N 1500A 16 from the SMB PC connector on the AFM to the COM1 port on the PC On...

Page 28: ...PK 125 125 9 E_VBAT 132 132 10 E_VBL 88 88 11 E_VBH 225 225 12 E_SUBT 0 0 13 E_AFM 127 127 14 E_AFB 138 138 15 E_FAM 120 120 16 E_FAB 147 147 17 E_0 0 0 18 E_1 0 0 19 E_2 0 0 20 E_3 0 0 21 E_4 0 0 22...

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Page 30: ...Los Altos CA 94023 0040 USA 408 734 3433 Fax 408 734 3432 www ecm co com...

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