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Home >> Plymouth >> 1999 >> Voyager Base, 3.3 R >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor

Engine Coolant Temperature (ECT) sensor delivers input signal to Powertrain Control Module (PCM) to indicate engine coolant temperature. PCM uses input signal for controlling air/fuel ratio, ignition system, idle speed and cooling fan operation. Engine coolant temperature sensor is located on or near the thermostat housing and contains a Black/Light Blue wire and a Tan/Black wire in the connector.

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