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Home >> Hyundai >> 2021 >> Veloster N Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) >> DTC P0300-00: Random-Multiple Cylinder Misfire Detected >> System Inspection >> Visual Inspection

Visual Inspection

  1. Remove the spark plugs.
  2. Visually/physically inspect the following items:
    • Damaged insulation, Worn electrodes, Oil or fuel fouled, Loose terminals and cracks.
    • Check for plug gap: 0.8 to 0.9 mm.
    • Check if the spark plug for the relevant cylinder is lighter in color than the other plugs.
  3. Has any problems been found?

    YES 

    NO 

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