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Home >> Hyundai >> 2012 >> Veloster Automatic DCT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) - Non-Turbo >> DTC P2251: O2 Sensor Reference Ground Circuit Open (Bank 1 Sensor 1) >> General Information >> DTC Description
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DTC Description

ECM 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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