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volkswagen Workshop Repair Guides

Volkswagen Workshop Manuals

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Engine Control Module: Description and Operation
Function

Function

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).

Relays and Modules > Relays and Modules - Powertrain Management > Relays and Modules - Computers and Control Systems > Engine Control Module > Component Information > Description and Operation > Function

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