volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Temperature Sensor > < ECM - Inoperative Due to Improper Battery Charging|Page 2560
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Engine Control Module: Description and Operation

    The electronic control unit is designed to constantly adjust the air/fuel mixture based on the signal from the oxygen sensor.  The ECU does this by
sending a signal to the frequency valve, which alters the control pressure at the fuel distributor.

Engine Temperature Sensor > < ECM - Inoperative Due to Improper Battery Charging|Page 2560