Our automotive experts have put together the following information about the P2634 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2634 code.

OBD II Fault Code

  • OBD II P2634

    OBD-II Code Decreased engine performance is defined as a Fuel Pump "B" Control Circuit High

    The Fuel Pump enables the transfer of fuel from the tank to the fuel injectors. If the engine control module (PCM) detects an incorrect signal from the Fuel Pump, the PCM will set code P2634.

    Decreased engine performance Symptoms

    • Decreased engine performance
    • Engine may not start

    Common Problems That Trigger the P2634 Code

    • Fuel pump failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P2634 Code

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