Ford P0108 Fault Code - Manifold Pressure Sensor Replacement

A Ford vehicle may trigger fault code P0108 which means Manifold Absolute Pressure/Barometric Pressure High. This code is activated by the ECM when it receives a signal from the MAP/BARO sensor circuit indicating it is operating outside the normal range.

What you will need

• OBD-II Scanner
• 20mm socket wrench
• Ford Fusion Manifold Pressure Sensor

Procedure

1. Unlock the vehicle and go to the driver's seat.
2. Connect the OBD-II Scanner to the OBD-II port located under the dashboard just above the hood release.
   

    

3. Turn the ignition switch to the accessories position.

    

4. Go to the Diagnostic Menu on the scanner and select read codes.

    

5. Press enter on the stored codes and the scanner will show P0108 Code - Manifold Absolute Pressure/Barometric Pressure Circuit High.

    

   
6. Open the hood by pulling the hood release under the dashboard. Release the hood at the latch right above the driver's headlight. 

    

7. Locate the manifold pressure sensor on the lower right side of the intake manifold.
   

    

   
8. Disconnect the electrical connector of the sensor by pressing the clip and pulling the connector out.

    

9. Remove the 20mm bolt on the sensor using a 20mm socket wrench.
10. Pull the manifold pressure sensor out of the vehicle.
11. Place the new manifold pressure sensor and reinstall the 20mm bolt.
12. Reconnect the electrical connector of the sensor.
13. Go back to the driver's seat.
14. Go to the diagnostic menu again and select erase codes.

     

15. Erase the stored codes on the scanner by pressing enter.

     

16. Start the vehicle and check if the check engine light is still on.