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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Control System & Fuel System - 3.6L - DTC P2231 To P2626) >> DTC P2251 >> DTC Descriptors

DTC Descriptors

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This diagnostic procedure supports the following DTC:

DTC P2251 HO2S Reference Ground Circuit Sensor 1

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