Cummins
    Cummins fault code

    Cummins Fault Code 2255: Rear Intercooler Boost Pressure High

    2255 on Cummins engines means: Rear Intercooler Boost Pressure High.

    Code details

    Manufacturer
    Cummins
    Applies to
    Cummins QS-series electronic engines
    Fault code
    2255
    QSK45/60/78 severity level
    QSK78: 2

    What to do next

    • Read active and inactive codes with the OEM service tool and note the occurrence count.
    • Have a heavy-duty diesel technician confirm the fault against the engine or chassis service manual before replacing parts.

    Get this code diagnosed

    Send one request and nearby diesel shops and mobile mechanics can quote the repair.

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    Source: Cummins "Diagnostic Fault Codes For Cummins Engines", publication 80-1044 Rev 5/2013, page 25. Marked in the source as a CENSE fault code. See also OBD-II codes.