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Our automotive experts have put together the following information about the P02E1 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P02E1 code.

OBD II Fault Code

  • OBD II P02E1

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

    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 not operating as requested, the PCM will set code P02E1.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 P02E1 Code

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