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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

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0171 Fuel Trim System Lean Bank 1

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