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OBD II Fault Code

  • OBD II P268A

    OBD-II Code Decreased engine performance is defined as a Fuel Injector Calibration not Learned/Programmed

    Fuel Injectors have calibration numbers printed on the side of them. Any time an injector is replaced, this number must be entered into the engine computer (PCM) and Glow Plug Control Module (GPCM). If the calibration ID is not registered to both modules, code P268A will be stored.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Engine may not start

    Common Problems That Trigger the P268A Code

    • Fuel injectors are not programmed to the powertrain control module (PCM) and the glow plug control module (GPCM)
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