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Home >> Kia >> 2015 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) - 2.4L (Except HEV) >> DTC P2251: O2 Sensor Specified Ground Circuit/Open (Bank 1/Sensor 1) >> DTC Information >> DTC Description

DTC Description

The PCM monitors the front O2 sensor Specified ground circuit (VG). If the front O2 sensor signal stuck is detected, the PCM sets DTC P2251.

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