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Our automotive experts have put together the following information about the P02F1 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 P02F1 code.

OBD II Fault Code

  • OBD II P02F1

    OBD-II Code Decreased engine performance is defined as a Cylinder 4 Injector Circuit Range/Performance

    The engine control module (PCM) has special transistors called "drivers" to turn the Fuel Injectors on and off in the Fuel Injection System. If the PCM cannot control the fuel injector for cylinder number four, it will set code P02F1.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P02F1 Code

    • Fuel injection control module (FICM) failure
    • Fuel injector failure
    • Wiring issue

    Common Repairs Needed for the P02F1 Code

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