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Buick
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2009
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Allure CX
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Repair and Diagnosis
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External Pages
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Different variant/trim
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Section 4 (Engine Control System & Fuel System - 5.3L - DTC P0016 To DTC P0358)
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DTC P0171 or P0172
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DTC Descriptors
DTC Descriptors
WARNING:
This page is about a different variant/trim than selected.
DTC P0171
Fuel Trim System Lean
DTC P0172
Fuel Trim System Rich