Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Mass Air Flow (MAF) and Intake Air Temperature (IAT) Sensor
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 TP sensor is used as a substitute.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.