General

OPERATION
The Engine Control Module (ECM) processes input signals, filters out stray signals and sends the results to the operating components of the fuel injection and ignition systems.

The ECM also provides for self-diagnosis of the Multi-Point Fuel Injection (MFI) system. The MFI system is adaptive or self-learning. The ECM learns continuously by using a sophisticated feedback system to constantly readjust the various basic control settings. These values are then stored in its electronic memory.

The adaptive capability allows the ECM to compensate for changes in the engine's operating conditions, such as altitude changes, intake leaks or other deviations.

If the vehicle battery or MFI ECM is disconnected, the vehicle must be driven for a few minutes so the MFI unit can "re-learn" its operating conditions.

The ECM also provides information signals to other systems as required.
- Engine speed signal to the Tachometer
- Fuel consumption signal to the Trip Computer