Removal Procedure

Other than checking for a worn grommet and loose electrical connectors, the only service possible is a unit replacement if the diagnosis shows a malfunctioning manifold absolute pressure (MAP) sensor.

1. Turn OFF the ignition.
Fig 1: View Of MAP Sensor Harness Connector
Courtesy of GENERAL MOTORS CORP.
2. Disconnect the MAP sensor harness connector.
Fig 2: View Of MAP Sensor
Courtesy of GENERAL MOTORS CORP.
NOTE: Do not rotate or pry on the MAP sensor when removing. Damage to the MAP sensor or the intake manifold may result.
3. Remove the MAP sensor by pulling straight up with a slight rocking motion.
4. Remove the MAP sensor grommet.
5. Discard the MAP sensor grommet.