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Home >> Subaru >> 2004 >> Baja Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4SO U5 (PZEV)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0139: O2 Sensor Circuit Slow Response (Bank 1 Sensor 2) >> General Driving Cycle
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General Driving Cycle

Perform the diagnosis only once when fuel shut-off in deceleration after rapid acceleration. (Pay attention to oxygen sensor voltage for the timing of deceleration.)



Perform the diagnosis only once when fuel shut-off in deceleration after rapid acceleration. (Pay attention to oxygen sensor voltage for the timing of deceleration.)

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