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Home >> Hyundai >> 2011 >> Elantra GLS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) >> DTC P2251: O2 Sensor Reference Ground Circuit/Open (Bank1 Sensor1) >> General Information >> DTC Description

DTC Description

The PCM monitors front O2 sensor reference ground circuit (VG) and sets DTC P2251 if front O2 sensor signal stuck is detected.

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