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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 57 (Engine Control System Diagnosis (2 Of 2) (HEV)) >> DTC P0507: Idle Air Control System-RPM Higher Than Expected >> System Inspection >> Air Leakage Inspection

Air Leakage Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Visually/physically inspect the air leakage in intake/exhaust system as following items,
    • Check for throttle Plate being held open with excessive carbon deposits
    • Vacuum hoses for splits, kinks and improper connections.
    • Throttle body gasket
    • Positive crankcase ventilation valve for improper installation, damaged o-rings and malfunctioning.
    • Gasket between intake manifold and cylinder head
    • Seals between intake manifold and fuel injectors
    • Exhaust system between HO2S and Three way catalyst for air leakage
  2. Was a problem found in any of the above areas?

    YES 

    NO 

    • Go to next step as below.