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Home >> Kia >> 2018 >> Forte LX, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Engine Control System Diagnosis - 2.0L GDI (3 Of 3)) >> DTC P2251: O2 Sensor Reference Ground Circuit/Open (Bank 1 / Sensor 1) >> DTC Information >> DTC Description

DTC Description

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ECM/PCM assumes the ground circuit is open and shows P2251 when Upstream O2 Sensor is 1.49 ~ 1.53V and internal resistance gets high.

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