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OBD II Fault Code

  • OBD II P0331

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Knock Sensor 2 Circuit Range/Performance

    The knock sensor tells the engine control module (PCM) that the engine has an excessive vibration resulting from an incorrect fuel and air mixture. If the PCM does not receive a signal from the knock sensor, it will set code P0331. The check engine light may or may not be illuminated.

    Common Problems That Trigger the P0331 Code

    • Knock sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P0331 Code

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