OBD II Fault Code

  • OBD II P02FA

    OBD-II Code Decreased engine performance is defined as a Diesel Intake Air Flow Position Sensor Minimum/Maximum Stop

    The volume of air going through the intake is controlled by the Intake Airflow Control Valve on the throttle body. The Intake Airflow Position Sensor tells the engine control module (PCM) the position of the Diesel Intake Airflow Control Valve. When the PCM detects a problem with this sensor or the circuit for the sensor, it will set code P02FA. This sensor is replaced as a unit with the throttle body and is not serviceable separately.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • DPF regeneration may not occur
    • Increased fuel consumption

    Common Problems That Trigger the P02FA Code

    • Powertrain Control Module (PCM) failure
    • Throttle body assembly failure
    • Wiring issue
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