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OBD II Fault Code

  • OBD II P02B2

    OBD-II Code Decreased engine performance is defined as a Cylinder 7 - Fuel Trim at Max Limit

    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 P02B2.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P02B2 Code

    • Damaged or contaminated spark plug
    • Engine sensor failure
    • Exhaust leak
    • Fuel injector failure
    • Fuel pump failure
    • Internal engine failure
    • Powertrain Control Module (PCM) software needs to be updated
    • The fuel does not meet the manufacturer's requirements

    Common Repairs Needed for the P02B2 Code

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