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OBD II Fault Code

  • OBD II P2674

    OBD-II Code Engine may run rough is defined as a Injection Pump Fuel Calibration not Learned

    The Injection Pump takes low pressure fuel from the fuel tank and converts it to high pressure fuel for the fuel injectors. The Injection Pump is usually gear driven and must be timed correctly so that the correct injector receives fuel at the right time. If the Injection Pump is not properly timed, code P2674 will be set.

    Engine may run rough Symptoms

    • Engine may not start
    • Engine may run rough

    Common Problems That Trigger the P2674 Code

    • Injection pump failure
    • Injection pump relearn procedure
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