volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Control Module|Testing and Inspection > < Engine Controls - MIL ON/DTC P150A Stored In Memory|Page 1677
Page 1
background image

Engine Control Module: Description and Operation

Function

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).

Engine Control Module|Testing and Inspection > < Engine Controls - MIL ON/DTC P150A Stored In Memory|Page 1677