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.

Air Flow Meter/Sensor: Service and Repair

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Mass Airflow Sensor with Intake Air Temperature Sensor Replacement

Removal Procedure

Note: Take care when handling the mass air flow/intake air temperature (MAF/IAT) sensor. Do not dent, puncture, or otherwise damage the honeycell located at the air inlet end of the MAF/IAT. Do not touch the sensing elements or allow anything including cleaning solvents and lubricants to come in contact with them. Use a small amount of a non-silicone based lubricant, on the air duct only, to aid in installation. Do not drop or roughly handle the MAF/IAT sensor.

1. Disconnect the MAF/IAT sensor electrical connector (1).
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement (Service and Repair).
3. Loosen the clamp securing the MAF/IAT sensor to the air cleaner duct.
4. Remove the MAF/IAT sensor bolts from the air cleaner assembly.
5. Remove the MAF/IAT from the air cleaner.

Installation Procedure

Note: The embossed arrow on the MAF/IAT sensor indicates the proper air flow direction. The arrow must point toward the engine.

1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.
2. Install the MAF/IAT sensor onto the air cleaner housing.

Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the MAF/IAT sensor retaining bolts and tighten to 11 Nm (97 lb in).
4. Tighten the clamp securing the MAF/IAT sensor to the air cleaner duct.
5. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement (Service and Repair).
6. Connect the MAF/IAT electrical connector (1).

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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.