GM Service Manual Online
For 1990-2009 cars only

The MAP sensor is mounted to the PCV valve cover.

Removal Procedure

  1. Turn OFF the ignition.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.
  3. Disconnect the MAP sensor electrical connector.

  4. Object Number: 12346  Size: SH
  5. Carefully release the locking tabs holding the MAP (1) sensor to the PCV valve cover (2) just enough to remove the MAP sensor.
  6. Pull the MAP sensor straight out of PCV valve cover.

Installation Procedure


    Object Number: 12346  Size: SH
  1. Ensure that the seal is installed on the MAP sensor and that the seal is not damaged.
  2. Position and install the MAP sensor (1) to the PCV valve cover (2). Ensure that the locking tabs engage to hold the MAP sensor to the PCV valve cover.
  3. Connect the electrical connector.
  4. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical.