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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 P0171: System Too Lean (Bank 1) >> Fuel Injector Inspection

Fuel Injector Inspection

  1. Check the fuel injectors for clogging or any restrictions.

    Test Condition : Ignition "OFF"

    Specification : No clogging and restriction

  2. Is the fuel injector OK?

    YES 

    NO 

    • Check injector for contamination, deterioration, or damage. Substitute with a known-good injector and check for proper operation. If the problem is corrected, replace injector and then go to VERIFICATION OF VEHICLE REPAIR  procedure.