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Home >> Pontiac >> 2009 >> G6 Base, 2D Coupe >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 2.4L - DTC P0010 To DTC P0138 >> DTC P0171 or P0172 >> DTC Descriptors

DTC Descriptors

DTC P0171: Fuel Trim System Lean
DTC P0172: Fuel Trim System Rich

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