LM-2 Digital Air/Fuel Ratio Meter User Manual Note: This manual assumes that firmware version 1.10 or later is installed on your LM-2
Document # 31-0008 LM2_Manual_1.3.doc 10 2 Air/Fuel Ratio Setup Innovate Motorsports’ ‘Direct Digital’ wideband measurement principal allows you t
Document # 31-0008 LM2_Manual_1.3.doc 11 The LM-2 must be powered by the cigarette adapter (12 volts) in order to properly heat the Oxygen sensor an
Document # 31-0008 LM2_Manual_1.3.doc 12 Do NOT install the Bung below the 3 o'clock or 9 o'clock position. Condensation can form in the
Document # 31-0008 LM2_Manual_1.3.doc 13 2.3 Calibration Schedule Normally aspirated (daily driver) - Calibrate before installation of new sensor -
Document # 31-0008 LM2_Manual_1.3.doc 14 3 Software (LogWorks 3 and LM Programmer) It is important to install the provided software on the comput
Document # 31-0008 LM2_Manual_1.3.doc 15 6. Select “Install the Device Automatically” and click Next. 7. A progress screen will appear. During thi
Document # 31-0008 LM2_Manual_1.3.doc 16 6. Select the firmware file with the dld extension. 7. The software will now prompt you to put the LM-
Document # 31-0008 LM2_Manual_1.3.doc 17 4. A window will pop up which will allow you to select the desired log from the memory card. Click Open.
Document # 31-0008 LM2_Manual_1.3.doc 18 4 OBD-II The LM-2 allows you to read up to 16 channels of “OBD-II” (“On Board Diagnostic) information direc
Document # 31-0008 LM2_Manual_1.3.doc 19 4.2 Selecting Channels on the LM-2 1. Press and hold the Mode button to go into the Configuration Menu S
Document # 31-0008 LM2_Manual_1.3.doc 2 TABLE OF CONTENT 1 LM-2...
Document # 31-0008 LM2_Manual_1.3.doc 20 4.3 Selecting Channels with the LM Programmer software 1. Connect the LM-2 to your computer with the prov
Document # 31-0008 LM2_Manual_1.3.doc 21 4.4 OBD-II Channel Speed The first is a log trace of one channel (RPM) from a 2001 Lexus: Notice that
Document # 31-0008 LM2_Manual_1.3.doc 22 Even if we zoom in to a closer time scale, the data is quite smooth. Performance is controlled by two th
Document # 31-0008 LM2_Manual_1.3.doc 23 Like the Saturn, it is connected using 500K bit CAN, but we can begin to see some ‘steppiness’ in the RPM
Document # 31-0008 LM2_Manual_1.3.doc 24 Since it is often a battle getting an ECU to deliver data fast enough, it is reasonable to ask why one woul
Document # 31-0008 LM2_Manual_1.3.doc 25 With our racetrack shaped diagram fresh in mind, let’s look at Low Priority inputs in practice. In this ex
Document # 31-0008 LM2_Manual_1.3.doc 26 But not all channels change quickly and we are more concerned with some channels than others. For exampl
Document # 31-0008 LM2_Manual_1.3.doc 27 Now, when we log the data, RPM, SPARKADV, and FUEL1_OL, look like our original four channel log: This e
Document # 31-0008 LM2_Manual_1.3.doc 28 2. Select OBD-II and press the Enter button. 3. Select Clear DTC Codes and press the Enter button. 4.8 C
Document # 31-0008 LM2_Manual_1.3.doc 29 4.9 OBD II Basics OBD stands for “On Board Diagnostics”. It represents a collection of industry and legi
Document # 31-0008 LM2_Manual_1.3.doc 3 1 LM-2 The LM-2 is a single or dual channel wideband controller with a built-in OBD II scan tool, RPM inpu
Document # 31-0008 LM2_Manual_1.3.doc 30 (ISO 15765 standard or extended) but that still leaves about 12 years of ‘compromise’ vehicles. Fortunatel
Document # 31-0008 LM2_Manual_1.3.doc 31 5 Analog Cable The provided analog cable has 14 stripped ends. The wire assignments are as follows: Analog
Document # 31-0008 LM2_Manual_1.3.doc 32 Cylinder number and RPM calibrate number 4 Cyl engine Number of Cylinders 4-Stroke pulses/Crank-Rotation C
Document # 31-0008 LM2_Manual_1.3.doc 33 5.2 Analog Inputs The LM-2 has 4 analog inputs for external 0-5V sensors. Each input has a corresponding
Document # 31-0008 LM2_Manual_1.3.doc 34 5.3 Analog Outputs 5.3.1 Programming the analog outputs 1. Connect the LM-2 to your computer with the
Document # 31-0008 LM2_Manual_1.3.doc 35 Note for Dual A/F channel units: You can program each analog output to represent the data from sensor 1 or
Document # 31-0008 LM2_Manual_1.3.doc 36 5.3.3 Wiring Analog Outputs The analog outputs on the LM-2 are differential. As with the analog inputs, t
Document # 31-0008 LM2_Manual_1.3.doc 37 6 Tips, Tricks, & Troubleshooting 6.1 Air/Fuel and Lambda The Stoichiometric AFR value is the AFR mu
Document # 31-0008 LM2_Manual_1.3.doc 38 6.2 General measurement requirements The LM-2 measures the air-fuel-ratio by measuring the amount of oxyg
Document # 31-0008 LM2_Manual_1.3.doc 39 6.6 Sensor Timing Errors These errors are typically encountered when the sensor does not have outside air
Document # 31-0008 LM2_Manual_1.3.doc 4 Top Bottom SD Memory Card Slot USB Connector Sensor Input # 2 (Enabled with
Document # 31-0008 LM2_Manual_1.3.doc 40 To connect the LM-2 to the EFI-computer, first determine what kind of narrow band sensor is used, then foll
Document # 31-0008 LM2_Manual_1.3.doc 41 6.8 Attenuating a Tach Signal The problem of an erratic tach signal happens if there is a lot of ringing
Document # 31-0008 LM2_Manual_1.3.doc 42 Appendix A: Specifications Power Power requirements Single Channel 8-14 Volt / 2 A (max, 1 A nominal)
Document # 31-0008 LM2_Manual_1.3.doc 43 Appendix B: Limited Warranty LIMITED WARRANTY Innovate stands behind the quality of its products. Innovate
Document # 31-0008 LM2_Manual_1.3.doc 44 Appendix C: Connectors 1. Sensor 1 (2 optional) Pin Use 1 IPUMP+ 2 SENSE/PUMP- 3 SHTR 4 VBAT 5
Document # 31-0008 LM2_Manual_1.3.doc 45 11 Analog In 4 + Peach 12 Analog Out 1 + Lime Green 13 Analog Out 2 + Brown/White 14 RPM + Black/Whit
Document # 31-0008 LM2_Manual_1.3.doc 46 Appendix D: Supported PIDs Name – Description Units Min. Max "RPM - Engine RPM", &quo
Document # 31-0008 LM2_Manual_1.3.doc 47 "SHRTFT32 - O2 Fuel Trim 3-2", "%", -100.0, 99.22, "O2S41 - O2 Sensor(NB) 4-
Document # 31-0008 LM2_Manual_1.3.doc 48 Appendix E: Error Codes and Troubleshooting Tips Error Code Error Message Likely Root Cause Fix Error 1
Document # 31-0008 LM2_Manual_1.3.doc 49 Appendix F: Kit Contents 1. USB Cable (P/N 3813) 2. LM-2 3. Bung and Plug** (P/N 3735) 4. O2 Sensor**
Document # 31-0008 LM2_Manual_1.3.doc 5 1.1 Main Screen There are 5 different screen view options. These can be cycled by pressing the Mode button.
Document # 31-0008 LM2_Manual_1.3.doc 50 12. Revision History 1.0 6/23/2008 Initial Release 1.1 7/10/08 Added RPM setup and LM Programmer configur
Document # 31-0008 LM2_Manual_1.3.doc 6 During Recording, an upper case ‘R’ and a counter will display on the lower left: Counting minutes and seco
Document # 31-0008 LM2_Manual_1.3.doc 7 connector. Last, “H” indicates that the unit is the MTS head unit. If the unit is not head this indicator
Document # 31-0008 LM2_Manual_1.3.doc 8 1.4 Recording To start a record session press the Record button. The LM-2’s display will then inverse and th
Document # 31-0008 LM2_Manual_1.3.doc 9 Note: While the session is being played back you can pres the Menu button to cycle through the different dis
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