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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Engine Control System & Fuel System - 5.3L - DTC P0016 To DTC P0358) >> DTC P0171 or P0172 >> DTC Descriptors

DTC Descriptors

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0171

Fuel Trim System Lean

DTC P0172

Fuel Trim System Rich

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