Crossfire V6-3.2L VIN L (2004)
Intake Air Temperature (IAT) Sensor: Description and Operation
INTAKE AIR TEMPERATURE SENSOR
The Intake Air Temperature sensor (IAT) (1,6,2) is integrated into the Mass Air Flow sensor (MAF). The IAT cannot be serviced separately. Refer to the
MAF service procedures for removal.
The IAT senses the inlet air temperature to the engine. The IAT then sends a signal to the Powertrain Control Module (PCM).
The Intake Air Temperature sensor (IAT) has a Negative Temperature Coefficient (NTC) integrated into the IAT The IAT alters its electrical resistance
in line with the intake air temperature. When the temperature increases, the resistance reading drops. As the temperature drops the resistance increases.
The IAT sends this resistance reading to the PCM to help calculate the amount of fuel that is needed. The IAT is integrated into the Mass Air Flow
sensor (MAF) and cannot be serviced individually. Refer to the MAF service procedures for removal and installation of the IAT/MAF.
