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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Engine Controls And Fuel - 2.0L (LTG) Or 2.5L (LCV) - DTC P0010 To DTC P0324) >> Diagnostic Information and Procedures >> DTC P0171 or P0172: Fuel Trim System >> DTC Descriptors

DTC Descriptors

WARNING: This page is about a different car, the 2016 Cadillac ATS. 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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