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Home >> Audi >> 1991 >> 200 Base >> Repair and Diagnosis >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Coolant Temperature Sensor (2.2L Turbo)
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Coolant Temperature Sensor (2.2L Turbo)

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