Section 03-14: Engine Controls, Electronic | 1996 F-150, F-250, F-350, F-Super Duty Series and Bronco Vehicles Workshop Manual |
Gasoline and Diesel Engines
The intake air temperature sensor (IAT sensor) (12A697) changes resistance in response to changing intake air temperature. The IAT sensor resistance decreases as the air temperature increases, providing a signal to the powertrain control module (PCM) (12A650) indicating temperature of the incoming intake air. On a diesel and MFI engine, the IAT sensor is installed in the lower intake manifold and in the air cleaner tube on SFI engines.