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Home >> Buick >> 2005 >> LeSabre Custom, 4T65E/M15 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (DTC P0141 To DTC P0446) >> Diagnostic Information & Procedures >> DTC P0171 >> DTC Descriptor

July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0171 Fuel Trim System Lean Bank 1

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