Innovate LM-2 User Manual

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
Warning!
The Oxygen Sensor used in this device gets very hot in operation.
Do not touch the hot sensor. Do not let a hot sensor 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-2 whenever the car is running. An un-powered oxygen
sensor will be quickly damaged when exposed to hot exhaust gases.

Innovate LM-2 Specifications

General

Type	Air/Fuel Ratio Meter
Display	LCD
Data Logging	Yes
Analog Inputs	2
RPM Input	Yes
Power Supply	12V DC
Connectivity	USB
Channels	2
Measurement Range	10.0 to 20.0 AFR
Accuracy	±0.1 AFR
Outputs	2 Analog Outputs
Wideband Sensor Type	Bosch LSU 4.2
Sensors Supported	Wideband O2

Summary

1.1 Main Screen and Status Bar

1.3 Configuration Menu Navigation

1.4 Recording and Playback Operations

2 Air/Fuel Ratio Setup

2.1 Sensor Calibration and Placement

Outlines the process for calibrating the oxygen sensor and best practices for its physical placement.

3 Software and Data Management

3.1 Software Installation and Device Connection

Step-by-step guide for installing the LogWorks software and connecting the LM-2 to a computer.

3.2 Firmware Update Procedure

Instructions for updating the LM-2's internal firmware using the LM Programmer application.

3.3 Downloading Log Files from Memory Card

Explains how to retrieve logged data from the SD memory card using the LogWorks 3 software.

4 OBD-II Vehicle Data Access

4.1 Locating the OBD-II Connector

4.2 Selecting OBD-II Channels on LM-2

Details how to configure which OBD-II data channels are read directly on the LM-2 unit.

4.3 Configuring OBD-II Channels via Software

4.6 Managing Vehicle Trouble Codes

5 Analog Signal Integration

5.1 RPM Input Configuration

5.2 Analog Input Wiring

Explains the differential nature of analog inputs and provides wiring diagrams for external sensors.

5.3 Analog Output Programming

6 Performance Tuning and Troubleshooting

6.1 Air/Fuel Ratio and Lambda Concepts

6.2 Measurement Accuracy Tips

6.3 Troubleshooting Common Errors

Details common error codes, their likely causes, and recommended corrective actions for the LM-2.

Appendix C: Connector Pinouts

Sensor, OBD-II, and Analog Connectors

Serial, USB, and Power Connector Details

Appendix D: Supported Parameter IDs (PIDs)

Appendix E: Error Code Troubleshooting