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Home >> Kia >> 2017 >> Niro EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (6 Of 6) >> DTC P2251-00: O2 Sensor Reference Ground Circuit/Open (Bank 1 / Sensor 1) >> DTC Information >> DTC Description

DTC Description

The ECM monitors Front O2 Sensor reference voltage circuit (VN) and sets DTC P2243 if Front O2 Sensor signal stuck is detected.

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