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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P1166: O2 Sensor System Lambda Bank Controller At The Limit (Bank 1) >> Inspection Procedures >> 2. Check Air Leakage & Connections To Dynamic Chamber

2. Check Air Leakage & Connections To Dynamic Chamber

  1. Check for air leakage and bad connections to the engine dynamic chamber (especially PCV, PCSV, ISCA hose, throttle body, intake manifold, and brake booster).

Are all connections okay? 

Yes: Go to next step.

No: Repair or replace it.

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