How does an air temperature sensor work?
How does an air temperature sensor work? The air temperature sensor is a thermistor, which means its electrical resistance changes in response to changes in temperature. It works the same as a coolant sensor. The PCM applies a reference voltage to the sensor (usually 5 volts), then looks at the voltage signal it receives back to calculate air temperature. Is there an air temperature sensor in the intake manifold? I know some cars (e.g., my wife's 1999 Acura TL) has intake air temperature sensor in the intake manifold, so that temperature reading does get to the 110F level after some...