Mass Air Flow (MAF) and Intake Air Temperature (IAT) Sensor
WARNING: This page is about a different car, the 2006 Mercury Milan and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The mass air flow (MAF) sensor is located between the air cleaner housing and the air intake hose leading to the throttle housing.
The intake air temperature (IAT) sensor is incorporated in the housing of the MAF sensor.
The MAF sensor, in conjunction with the IAT sensor, provides the PCM with the primary load signal.
The TCM receives the signals from the PCM and uses them for the following functions, among other things:
- To control the shift operations.
- To control the main line pressure.
If the MAF sensor fails, the signal of the throttle position (TP) sensor is used as a substitute.