GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Note: Use 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.


    Object Number: 1656804  Size: SH
  1. Disconnect the engine harness electrical connector (5) from the MAF/IAT sensor.

  2. Object Number: 1656806  Size: SH
  3. Remove the MAF/IAT sensor screws.
  4. Remove the MAF/IAT sensor.

Installation Procedure


    Object Number: 1656806  Size: SH
  1. Install the MAF/IAT sensor.
  2. Caution: Refer to Fastener Caution in the Preface section.

  3. Install the MAF/IAT sensor screws and tighten to 0.6 N·m (5 lb in).

  4. Object Number: 1656804  Size: SH
  5. Connect the engine harness electrical connector (5) to the MAF/IAT sensor.