LEMON Manuals
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Subaru
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2023
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Ascent Base
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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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Engine Control System (Diagnostics) (1 Of 4)
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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
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DTC P0140: O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2
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General Driving Cycle
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General Driving Cycle
Always perform the diagnosis continuously after the enable conditions have been established.