Volkswagen Passat 1995 Official Factory Repair Manual page 1353

Engine Control Module (ECM)
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Engine Control Module
(ECM)
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 1, engine speed limitation via fuel
injectors and fuel pump relay, and On Board
Diagnostic (OBD).
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