What Does P0311 Code Mean?

    OBD-II Code P0311 is defined as a Cylinder 11 Misfire Detected

    When the engine control module (PCM) detects that cylinder 11 is not sufficiently contributing to keeping the engine running properly, it will set code P0311.

    P0311 Symptoms

    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P0311 Code

    • Damaged or contaminated spark plug
    • Engine sensor failure
    • Exhaust leak
    • Fuel injector failure
    • Fuel pump failure
    • Ignition coil failure
    • Internal engine failure
    • Powertrain Control Module (PCM) software needs to be updated
    • The fuel does not meet the manufacturer's requirements
    • Vacuum leak

    Common Repairs Needed for the P0311 Code

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