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Home >> Hyundai >> 2004 >> Elantra GLS, Standard >> Repair and Diagnosis >> Engine Mechanical >> Fuel System >> DTC Trouble Shooting Procedures >> DTC P0140: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 2) >> Inspection Procedures >> 3. Check Intake System For Vacuum Leakage

3. Check Intake System For Vacuum Leakage

  1. Check intake system for vacuum leakage.

Is any leakage present? 

No: Go to next step.

Yes: Repair it.

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