Sentra Wagon FWD L4-1597cc 1.6L SOHC (E16i) (1988)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
The water temperature sensor, located on the front side of the intake manifold, detects engine coolant temperature and emits signals to the E.C.U.
This part employs a thermistor which is sensitive to changes in temperature. The electric resistance of a thermistor decreases in response to a
temperature rise.