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2012
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Outback Base, Standard Trans
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Repair and Diagnosis
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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 P0139 O2 Sensor Circuit Slow Response (Bank 1 Sensor 2)
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Component Description
Component Description
Fig 1: Electromotive Force And Air Fuel Ratio Characteristics Graph (P0139)
Courtesy of SUBARU OF AMERICA, INC.
Courtesy of SUBARU OF AMERICA, INC.