GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: 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. Loosen the clamp on the air intake duct at the throttle body.
  3. Loosen the clamps on each side of the MAF/IAT sensor.
  4. Remove the air intake duct.
  5. Remove the MAF/IAT sensor from the air cleaner housing.

Installation Procedure

Important:: The embossed arrow on the MAF/IAT sensor (2) indicates the proper air flow direction. The arrow must point toward the engine.


    Object Number: 359112  Size: SH
  1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.
  2. Install the MAF/IAT sensor into the air cleaner housing.
  3. Tighten the clamp securing the MAF/IAT sensor to the air cleaner housing.
  4. Install the air intake duct to the MAF/IAT sensor and the throttle body.
  5. Tighten the clamps at the MAF/IAT sensor and the throttle body.
  6. Connect the MAF/IAT sensor electrical connector.