OBD II Fault Code

  • OBD II P02E4

    OBD-II Code Decreased engine performance is defined as a Diesel Intake Air Flow Control Stuck Open

    The volume of air going through the intake is controlled by the Intake Airflow Control Valve on the throttle body. If the engine control module (PCM) detects the Intake Airflow Control Valve is stuck open, the PCM will set code P02E4.Failure of the Intake Airflow Control Valve may require replacement of the throttle body assembly, as it is not always serviceable separately.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Engine may stall
    • Increased fuel consumption

    Common Problems That Trigger the P02E4 Code

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

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