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Home >> Audi >> 1989 >> 80 Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Theory/Operation >> Computerized Engine Controls >> Input Devices >> Coolant Temperature Sensor (CIS Digital & CIS Motronic)
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Coolant Temperature Sensor (CIS Digital & CIS Motronic)

The coolant temperature sensor is located in the cylinder head coolant passage and informs ECU of engine operating temperature. Signal is used to provide corrections to air fuel mixture.