GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Pontiac
🢒
1999
🢒
Grand Prix
🢒
Engine
🢒
Engine Controls - 3.8L
🢒 Manifold Absolute Pressure Sensor Replacement
Manifold Absolute Pressure Sensor Replacement VIN 1
Removal Procedure
Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
Remove the screws.
Disconnect the MAP sensor electrical connector and vacuum hose from the sensor.
Remove the MAP sensor.
Installation Procedure
Connect the electrical connector and vacuum hose to the MAP sensor.
Position the MAP sensor to the bracket and secure with the screws.
Reconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
Manifold Absolute Pressure Sensor Replacement VIN K
On VIN K applications, the MAP sensor is mounted to the PCV valve cover.
Removal Procedure
Disconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.
Disconnect the MAP sensor electrical connector.
Carefully bend the locking tabs holding the MAP (1) sensor to the PCV valve cover (2) just enough to remove the MAP sensor.
Pull the MAP sensor straight out of PCV valve cover.
Installation Procedure
Ensure that the seal is installed on the MAP sensor and that the seal is not damaged.
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.
Connect the electrical connector.
Reconnect the negative battery cable. Refer to
Battery Negative Cable Disconnection and Connection
in Engine Electrical.