GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Malibu 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Manifold Absolute Pressure Sensor Replacement

Removal Procedure

    Object Number: 1889722 Size: SH
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  2. Disconnect the evaporative emission (EVAP) canister purge tube from the intake manifold. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Reposition the EVAP canister purge tube (1) out of the way.

    4. Object Number: 1889725 Size: SH
  4. Disconnect the fuel injector wiring harness electrical connector (1) from the manifold absolute pressure (MAP) sensor.

    5. Object Number: 1889726 Size: SH
  5. Remove the fuel injector wiring harness clips (1) from the fuel rail tabs.
  6. Disconnect the fuel injector wiring harness electrical connector (2) from the number 3 fuel injector.

    7. Object Number: 1889727 Size: SH
  7. Squeeze tabs and slide the MAP sensor (1) upward.

Installation Procedure

    Object Number: 1889727 Size: SH
  1. Lubricate the NEW MAP sensor seal with clean engine oil.
  2. Install the MAP sensor (1) into the intake manifold.

    3. Object Number: 1889726 Size: SH
  3. Connect the fuel injector wiring harness electrical connector (2) to the number 3 fuel injector.
  4. Install the fuel injector wiring harness clips (1) to the fuel rail tabs.

    5. Object Number: 1889725 Size: SH
  5. Connect the fuel injector wiring harness electrical connector (1) to the MAP sensor.

    6. Object Number: 1889722 Size: SH
  6. Position the EVAP canister purge tube (1) out of the way.
  7. Connect the EVAP canister purge tube to the intake manifold. Refer to Plastic Collar Quick Connect Fitting Service .
  8. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .