SM4 Manual
by
MRM-Racing
V3.0
10
Installation Guide
The installation guide will guide you through a typical installation. For details on the sensors and
devices mentioned here see section
Sensor and device pin outs.
Flying Lead Loom Installation on engine
The following list outlines the procedure for installing the SM4 ECU with the flying lead harness:
1. Unpack your ECU and identify the following components, some components may vary if
ordered a specific kit.
a. SM4 ECU
b. Main Flying Lead Harness
c. Coolant Temperature Sensor, Bosch type 0 280 130 023 or similar
d. Air Temperature Sensor
e. SM4 Instruction Manual
f. Programming Cable
g. Programming Software
h. Main Relay for Injectors and Fuel Pump, Bosch type 0 332 014 150 or similar
i. Throttle Position Sensor (optional)
j. Idle Speed Motor (optional)
k. Lambda Sensor for CLC (optional)
2. Mounting Devices:
a. Locate a suitable location for the ECU, Ensure that the loom will reach the
necessary part of the engine and mount the ECU.
b. Locate a suitable place for the main relay.
3. Run the loom into the engine bay, but leave the ECU connector disconnected.
Note:
Installation of engine management system is a complex exercise to be undertaken
only after careful planning and research into the application for which the product is
to be used. Damage to engine components is a distinct possibility if care is not taken
during installation and setup of the Autronic SM4 system. If you are unsure about how
to wire any components of your engine, please consult an experienced installer for
advice.