volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Control Module|Testing and Inspection > < Engine Control Module (ECM) Equipment|Page 3446
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Engine Control Module: Description and Operation

Function

The Engine Control Module (ECM) controls fuel injection, the throttle valve control module, oxygen sensor control, ignition, knock control, EVAP
canister purge regulator valve, engine speed limitation via fuel injectors and fuel pump relay, as well as the On Board Diagnostic (OBD).

Engine Control Module|Testing and Inspection > < Engine Control Module (ECM) Equipment|Page 3446