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Home >> Subaru >> 2017 >> Outback 2.5i >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DO) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0171: System Too Lean Bank 1 >> Notes

DTC P0171: System Too Lean Bank 1: Notes

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