Coolant Temperature Sensor Wiring Diagram. Testing engine coolant temperature sensor. The coolant temp sensor for the pcm has two wires and is located near the thermostat.
1 2 3 wire coolant temperature sensor wiring diagram 1993 1995 iat and ect sensor wiring diagram jeep 4 0l ect sensor wiring diagram the owner of. This 2 wire sensor figures 1 and 2 is checking metal temperature and is used to infer coolant temperature. When starting an engine the amount of injected fuel must be corrected in several ways.