Air Temperature Sensor ( Ambient / Intake ): Description and Operation

Intake Air Temperature Sensor and MAP Sensor-2.4L:

INTAKE AIR TEMPERATURE SENSOR-PCM INPUT
The IAT sensor threads into the intake manifold.

The Intake Air Temperature (IAT) sensor measures the temperature of the intake air as it enters the engine. The sensor supplies one of the inputs the PCM uses to determine injector pulse width and spark advance.