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Home › Buick › 2005 › Terraza CX, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - 3.5L - DTC P0138 - P0443 › DTC Tests › 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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