Engine Control Module: Description and Operation

Engine Control Module

=> [ Engine Control Module Voltage Supply, Checking ] Engine Control Module Voltage Supply, Checking

=> [ Engine Control Module, Replacing ] Service and Repair

Motronic Engine Control Module (ECM) (J623) regulates fuel injection, Throttle Valve Control Module (J338), oxygen sensor regulation, ignition, knock control, Evaporative Emission (EVAP) Canister Purge Regulator Valve ( N80), engine speed limitation through fuel injectors or Fuel Pump (FP) Relay (J17) as well as On Board Diagnostic (OBD).