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Genesis
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2017
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G90 5.0 Ultimate, RWD
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Diagnosis (3 Of 3) - 5.0L
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DTC P2251: O2 Sensor Reference Ground Circuit Open (Bank 1 Sensor 1)
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DTC Information
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DTC Description
DTC Description
ECM assumes the power circuit is open and shows P2251.