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Home › Buick › 2007 › Allure CXS › Repair and Diagnosis › Engine Performance › System › Engine Control System & Fuel System - 3.6L - DTC P0135 To P0420 › DTC P0138 › DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0138 HO2S Circuit High Voltage Sensor 2

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