Capri L4-1597cc 1.6L DOHC (1992)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Engine Coolant Temperature (ECT) Sensor
PURPOSE
The Engine Coolant Temperature (ECT) sensor constantly supplies the ECA with a signal reflecting engine coolant temperature. The ECA reads
varying sensor resistance and determines engine operating temperature. This information is used in calculations for air/fuel mixture, idle speed,
fuel pressure, and purge flow.
OPERATION
The ECT is a negative temperature coefficient sensor. As coolant temperature increases, sensor resistance decreases, and vice versa.