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OBD II Fault Code

  • OBD II P052C

    OBD-II Code Decreased engine performance is defined as a Cold Start "A" Camshaft Position Timing Over-Advanced

    The engine control module (PCM) monitors Ignition Timing on initial startup. If the Ignition Timing varies excessively from where it should be, the PCM will set code P052C.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Engine may not start
    • Hard engine start

    Common Problems That Trigger the P052C Code

    • Mass Air Flow (MAF) sensor failure
    • Powertrain Control Module (PCM) failure
    • Variable timing system failure

    Common Repairs Needed for the P052C Code

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