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Home >> Buick >> 2005 >> Allure CX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.8L (DTC P0140 To DTC 0412) >> Diagnosis >> DTC P0140 >> DTC Descriptor

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0140 HO2S Circuit Insufficient Activity Bank 1 Sensor 2

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