Intake Air Temperature (IAT) Sensor

ENGINE CONTROL COMPONENTS

Intake Air Temperature (IAT) Sensor
The IAT sensor is a thermistor device. The electrical resistance of a thermistor decreases as the temperature increases, and resistance increases as the temperature decreases. The varying resistance affects the voltage drop across the sensor providing a signal corresponding to temperature. The IAT is integrated with the mass air flow (MAF) sensor, known as the MAF/IAT sensor.