Document # 31-0008 LM2_Manual_1.4.doc
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TABLE OF CONTENT
1 LM-2.......................................................................................................................................................3
1.1 Main Screen.....................................................................................................................................5
1.2 Status Bar ........................................................................................................................................5
1.3 Configuration Menu Screen .............................................................................................................7
1.4 Recording.........................................................................................................................................8
1.5 Playback...........................................................................................................................................8
2 Air/Fuel Ratio Setup.............................................................................................................................10
2.1 Sensor Calibration..........................................................................................................................10
2.2 Sensor Placement..........................................................................................................................11
2.3 Calibration Schedule......................................................................................................................13
3 Software (LogWorks 3 and LM Programmer)......................................................................................14
3.1 Installing software and Connecting the LM-2 to computer.............................................................14
3.2 Updating Firmware.........................................................................................................................15
3.3 Downloading Logs from Memory Card ..........................................................................................16
4 OBD-II..................................................................................................................................................18
4.1 Locate the OBD-II Connector in your vehicle.................................................................................18
4.2 Selecting Channels on the LM-2....................................................................................................19
4.3 Selecting Channels with the LM Programmer software.................................................................20
4.4 OBD-II Channel Speed ..................................................................................................................21
4.5 Set the Priority of OBD-II Inputs (Optional)....................................................................................23
4.6 Check Vehicle Trouble Codes on the LM-2...................................................................................27
4.7 Clear Vehicle Trouble Codes on the LM-2.....................................................................................27
4.8 Check and Clear Vehicle Trouble Codes with LM Programmer....................................................28
4.9 OBD II Basics.................................................................................................................................29
5 Analog Cable .......................................................................................................................................31
5.1 RPM Input ......................................................................................................................................31
5.1.1 Enable/Disable RPM .............................................................................................................31
5.1.2 Configure RPM......................................................................................................................31
5.2 Analog Inputs .................................................................................................................................34
5.2.1 Enable/Disable Analog Inputs...............................................................................................34
5.2.2 Wiring Analog Inputs .............................................................................................................34
5.3 Analog Outputs ..............................................................................................................................35
5.3.1 Programming the analog outputs..........................................................................................35
5.3.2 Advanced output programming.............................................................................................36
5.3.3 Wiring Analog Outputs ..........................................................................................................37
6 Tips, Tricks, & Troubleshooting ...........................................................................................................38
6.1 Air/Fuel and Lambda......................................................................................................................38
6.2 General measurement requirements .............................................................................................39
6.3 Vehicles with ‘smog-pumps’...........................................................................................................39
6.4 Single Cylinder Engines.................................................................................................................39
6.5 Diesel Engines ...............................................................................................................................39
6.6 Sensor Timing Errors .....................................................................................................................40
6.7 Connecting the LM-2 to simulate a narrow band oxygen sensor ..................................................40
6.8 Attenuating a Tach Signal..............................................................................................................42
6.9 OBD II connection diagnostic trace................................................................................................42
Appendix A: Specifications..........................................................................................................................43
Appendix B: Limited Warranty ....................................................................................................................44
Appendix C: Connectors .............................................................................................................................45
Appendix D: Supported PIDs......................................................................................................................47
Appendix E: Error Codes and Troubleshooting Tips ..................................................................................49
Appendix F: Kit Contents ............................................................................................................................50
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