GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement

  2. Object Number: 1571757  Size: SH
  3. Remove the evaporative emission (EVAP) canister purge tube from the intake manifold. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Reposition the EVAP canister purge tube out of the way.
  5. Disconnect and reposition the fuel injector wiring harness out of the way .

  6. Object Number: 1581050  Size: SH
  7. Disconnect the engine harness electrical connector from the manifold absolute pressure (MAP) sensor.
  8. Remove the MAP sensor and seal.

Installation Procedure


    Object Number: 1581050  Size: SH
  1. Lubricate the NEW MAP sensor seal with clean engine oil.
  2. Install the MAP sensor into the intake manifold.
  3. Connect the engine harness electrical connector to the MAP sensor.
  4. Position and connect the fuel injector wiring harness.

  5. Object Number: 1571757  Size: SH
  6. Position the EVAP canister purge tube to the intake manifold.
  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