Manifold Pressure/Vacuum Sensor: Service and Repair
REMOVAL PROCEDUREOther than checking for a worn grommet and loose harness connectors, the only service possible is a unit replacement if the diagnosis shows a malfunctioning manifold absolute pressure (MAP) sensor.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the air inlet tube and resonator retaining wingnut.
3. Remove the air inlet tube and resonator from the throttle body by pivoting the air inlet tube and resonator upward until the hinge clip releases from the lip on the throttle body.
4. Disconnect the MAP sensor harness connector.
NOTE: Do not rotate or pry on the MAP sensor when removing. Damage to the MAP sensor or the intake manifold may result.
5. Remove the MAP sensor.
6. Remove the MAP sensor grommet.
IMPORTANT: After removing the MAP sensor from the intake manifold, replace the MAP sensor to intake manifold grommet.
7. Discard the MAP sensor grommet.
INSTALLATION PROCEDURE
1. Install the new MAP sensor grommet on the MAP sensor.
2. Install the MAP sensor.
3. Connect the MAP sensor harness connector.
4. Align the hinge clip with the lip on the throttle body.
Install the air inlet tube and resonator to the throttle body by pivoting the air inlet tube and resonator downward until the mounting stud is through the hole in the air inlet tube.
5. Install the resonator retaining wingnut.
6. Connect the negative battery cable.