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Our automotive experts have put together the following information about the P02A9 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 P02A9 code.

OBD II Fault Code

  • OBD II P02A9

    OBD-II Code Decreased engine performance is defined as a Cylinder 4 - Injector Leaking

    The engine control module uses a fuel pressure sensor to determine the amount of fuel pressure in the fuel rail. If the pressure does not change the way the PCM thinks it should, the PCM will set code P02A9.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P02A9 Code

    • Fuel injector failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P02A9 Code

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