LEMON Manuals
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Subaru
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2004
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Baja Base, Automatic
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Repair and Diagnosis (Single Page)
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Engine Performance
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Testing & Diagnosis
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Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5 (PZEV))
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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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Rich --> Lean response diagnosis
Fig 1: Enable Condition Table
Courtesy of SUBARU OF AMERICA, INC.
Lean --> Rich response diagnosis
Fig 1: Enable Condition Table
Courtesy of SUBARU OF AMERICA, INC.
Courtesy of SUBARU OF AMERICA, INC.
Courtesy of SUBARU OF AMERICA, INC.