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Home >> Kia >> 2011 >> Optima LX, Automatic >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) - 2.4L >> DTC P0506: Idle Air Control System-RPM Lower Than Expected >> Inspection/Repair >> System Inspection >> Check For Restricted Intake Or Exhaust System
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Check For Restricted Intake Or Exhaust System

  1. Visually/physically inspect the following items:
    • Air cleaner filter element for excessive dirt or for any foreign objects.
    • Throttle body inlet for damage or for any foreign objects.
    • Restricted exhaust system.
  2. Was a problem found in any of the above areas?

    YES 

    NO 

    • Go to next step as below.