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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0133: O2 Sensor Circuit Slow Responsive (Bank 1, Sensor 1) >> Inspection Procedures >> 2. Check Exhaust System For Leakage

2. Check Exhaust System For Leakage

  1. Visually check exhaust system for leakage (especially between TWC converter and front exhaust pipe).

Is any leakage present? 

No: Go to next step.

Yes: Repair exhaust system leakage.

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