Engine Coolant Temperature Sensor

Details the operation of the engine coolant sensor (ECT). The ECT is a thermistor device with a negative temperature coefficient. The ECT is one of the main inputs to the ECM. It operation has a huge effect on performance. Learn how it works, what's the reference voltage and how to test it.



http://www.youtube.com/watch?v=ZuCVzUarefE&hl=en