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Home >> Lexus >> 1994 >> SC 400 >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Engine Coolant Temperature (ECT) Sensor

Engine Coolant Temperature (ECT) Sensor

ECM applies a reference voltage to ECT sensor, which is a variable resistor. ECM uses voltage signal to control fuel injection duration.