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Subaru
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2012
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Outback Base, Standard Trans
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO)
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC P0171 System Too Lean (Bank 1)
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Outline Of Diagnosis
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Notes
Outline Of Diagnosis: Notes
Detect fuel system malfunction by the amount of main feedback control.