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  • P000F - Fuel System Over Pressure Relief Valve Activated

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    P000F - Fuel System Over Pressure Relief Valve Activated

    When Monitored and Set Conditions

    When Monitored: This diagnostic runs continuously when the following conditions are met:

    • With the engine running.

    Set Conditions:

    • The Powertrain Control Module (PCM) has detects that the fuel pressure has deviated at a higher rate than the calibrated threshold. This DTC will cause active regeneration to be disabled.

    Default Actions:

    • The MIL will illuminate.

    Possible Causes

    • PRESSURE LIMITING VALVE
    • LIFT PUMP
    • HIGH PRESSURE PUMP
    • EXCESSIVE INJECTOR DRAINS

    Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 28 - DTCBased Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

    CHECK THE FUEL DELIVERY SYSTEM
    1. (Refer to 29 - Non-DTC Diagnostics/Drivability - Diesel - Diagnosis and Testing) and perform the CHECKING THE FUEL DELIVERY SYSTEM diagnostic procedure.

    Were any problems found?

     

    Yes
    Repair as necessary.

     

    No

    Perform the INTERMITTENT CONDITION diagnostic procedure. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).


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