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Home >> Merkur >> 1986 >> XR4Ti Automatic >> Repair and Diagnosis >> Engine Performance >> System >> EEC IV System >> Operation >> Inputs >> Engine Coolant Temperature (ECT) Sensor

Engine Coolant Temperature (ECT) Sensor

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This sensor, threaded into heater outlet fitting or engine cooling passage, monitors engine coolant temperature. The ECA is sent a signal throughout the entire range of operating temperatures. In turn, the ECA modifies air/fuel mixture, ignition timing, and EGR operation.