Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Hyundai >> 2005 >> Elantra GLS, 4D Hatchback, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Troubleshooting Procedures >> DTC P0172: System Too Rich (Bank 1) >> Check For Restricted Intake Or Exhaust System

Check For Restricted Intake Or Exhaust System

  1. Visually/physically inspect the following items:
    1. Air cleaner filter element for excessive dirt or for any foreign objects
    2. Throttle body inlet for damage or for any foreign objects.
    3. Throttle bore, throttle plate and the IAC passages for chocking and for any foreign objects.
    4. Restricted exhaust system.
  2. Was a problem found in any of the above areas?

    YES 

    NO