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Home >> Kia >> 2019 >> Forte EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (4 Of 6) >> DTC P0506-00: Idle Air Control System-RPM Lower Than Expected >> System Inspection >> Intake/Exhaust System For Restriction Or Leakage >> Inspection Procedure

Inspection Procedure

  1. Refer to appropriate service information and visually and/or physically inspect following conditions;
    • Vacuum hoses for splits, kinks and improper connections.
    • Throttle Body Gasket.
    • Gasket between Intake Manifold and Cylinder head.
    • Seals between Intake Manifold and Fuel Injectors.
    • Exhaust system between O2 sensor and the Three way catalyst for air leakage.
    • Air Cleaner filter element for excessive dirt or for any foreign objects.
    • Throttle body inlet for damage or for any foreign objects.
    • Throttle bore and throttle plate for chocking and for any foreign objects.
    • Restricted exhaust system.

    Good 

    • Carefully re-do this troubleshooting guide steps.
    • If the diagnostics have been performed correctly with no failure found and no problems were found with the circuits or connectors, replace the PCM and then go to "VERIFICATION OF REPAIR " procedure.

    No Good 

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