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Home >> Buick >> 2006 >> Allure CXS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.6L (Ly7) - DTC P2231 To DTC P2626 >> DTC P2251 >> DTC Descriptors

DTC Descriptors

This diagnostic procedure supports the following DTC:

DTC P2251 HO2S Reference Ground Circuit Sensor 1

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