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Home >> Subaru >> 2012 >> Outback Base, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Diagnostics (H4SO) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0171 System Too Lean (Bank 1)

DTC P0171 System Too Lean (Bank 1)

Refer to DTC P0172 for diagnostic procedure. Refer to , DTC P0172 SYSTEM TOO RICH (BANK 1) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).