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Our automotive experts have put together the following information about the P2345 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 P2345 code.

OBD II Fault Code

  • OBD II P2345

    OBD-II Code Engine may run rough is defined as a Cylinder 10 Above Knock Threshold

    If the fuel injector does not allow sufficient fuel into the cylinder, it will cause the cylinder to run lean. This will create an engine knock. The injectors have a calibration number on the side of them that needs to be entered into the engine computer (PCM) anytime the injector is replaced. If the number is not entered into the PCM, code P2345 will be stored.

    Engine may run rough Symptoms

    • Engine may not start
    • Engine may run rough

    Common Problems That Trigger the P2345 Code

    • Fuel injector calibration needs to be entered into the PCM
    • Fuel injector failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P2345 Code

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