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Intake air temperature sensor

2015-12-31

Function: detecting an engine intake air temperature, transform the intake air temperature into a voltage signal,and the signal is input to the ECU as the fuel injection correction signals.

Intake air temperature sensor is a sensor wire, mounted in the intake manifold or an air flow meter. Intake air temperature sensor is a negative temperature coefficient thermistor , resistance change under different signal voltages.  In the cold car, intake air temperature sensor signal is substantially the same as the engine coolant temperature sensor signal, its signal voltage is about 2 or 3 times of the engine coolant temperature sensor.
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