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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostics) (P0171 To P0685) (H4DOTC) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0172 System Too Rich Bank 1 >> Outline Of Diagnosis >> Notes

Outline Of Diagnosis: Notes

Detect fuel system malfunction by the amount of main feedback control.

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