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Home >> Hyundai >> 2005 >> Elantra GLS, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Troubleshooting Procedures >> DTC P0300: Random/Multiple Cylinder Misfire Detected >> Air Leakage Inspection

Air Leakage Inspection

  1. Visually/physically inspect the air leakage in intake/exhaust system as following items.

    If OK, go to next step.

    If NG, repair as necessary and go to VERIFICATION OF VEHICLE REPAIR  procedure.

    1. Vacuum hoses for splits, kinks and improper connections.
    2. Throttle body gasket.
    3. Gasket between intake manifold and cylinder head.
    4. Seals between intake manifold and fuel injectors.
    5. Exhaust system between HO2S and Three way catalyst for air leakage.
  2. Was a problem found in any of the above areas?

    YES 

    NO 

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