Horizon L4-97 1.6L SOHC (1984)
Coolant Temperature Sensor/Switch (For Computer): Description and Operation
Coolant Temperature Switch
Fig. 2 Coolant switch location. 4-97 engine
On four cylinder engines the coolant switch, Fig. 2, is located on the thermostat housing. It supplies a signal to the computer when the engine coolant
temperature is below 150°F. This information is required to prevent a change in air fuel ratio until engine operating temperature is reached.
