Jump to content
Mike Needs Help with Medical Bills Read more... ×
  • Raffles

  • Mass Air Flow Sensor (MAF)

       (0 reviews)




    The Mass Airflow (MAF) sensor is a frequency based device. A constant voltage is applied to a heated wire on the sensor. This wire is positioned in the air cleaner air stream and is heated by the electrical current that the voltage produces. As air flows across it, it cools down. The heated wire or film is a positive temperature coefficient resistor. This means that its resistance drops when its temperature drops. The drop in resistance allows more current to flow through it in order to maintain the programmed temperature. This current is changed to a frequency which is sent to the Engine Control Module (ECM) and interpreted as air flow. Adjustments for air temperature and humidity are taken into consideration because they also affect the temperature of the heated wire or film.


    The Mass Airflow Sensor (5) is located on the air cleaner cover (8).
    1. Disconnect electrical connector (6) at sensor.
    2. Remove two mounting screws (4).
    3. Remove sensor from air cleaner cover.


    1. Check condition of sensor O-ring.
    2. Position sensor into top of air cleaner cover with a slight twisting action.
    3. Install mounting screw (4).
    4. Install electrical connector (6).



    User Feedback

    Create an account or sign in to leave a review

    You need to be a member in order to leave a review

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now

    There are no reviews to display.