Ford P0103 Mass Airflow (MAF) Circuit High Air Flow & Voltage Output

What you will need

• OBD-II Scanner
• T20 Screwdriver
• Ford Fusion Mass Airflow Sensor

Procedure

1. Unlock the vehicle and go to the driver's seat.
2. Connect the OBD II Scanner into the OBD II port located below the dashboard.

   

3. Turn the ignition switch to the accessories position.

    

4. Go to the diagnostic menu and select read codes on the scanner.
5. Select stored codes to see the faulty code.

    

6. The scanner will show faulty code P0103 Mass Airflow (MAF) Circuit High Air Flow & High Voltage Output.

    

7. Turn off the ignition switch.
8. Open the hood. Click here to see the step-by-step procedure on how to open the hood on a Ford Fusion 2013-2020.
9. Locate the mass airflow sensor on the driver's side of the engine compartment near the air filter housing.

    

10. Pull the red tab under the connector of the mass airflow sensor and pull the connector out to disconnect it.

     

    
11. Remove the two T20 screws on the sensor using a T20 screwdriver.

     

12. Pull the sensor out.

     

    
13. Insert the new mass air flow sensor.

     

14. Reinstall the two T20 screws on the sensor.
15. Reconnect the electrical connector of the sensor and push the red tab to lock the connector in.

     

16. Turn the ignition switch to accessories position again.
17. Go to the erase codes menu and select yes to erase the codes.

     

    
18. Go to the read codes and check if there are still codes on the scanner.