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Home >> Subaru >> 2020 >> Outback Premium >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (4 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2270: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 >> General Description >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
Battery voltage 10.9 V or more
Sub feedback In operation
Amount of intake air 10g/s (0.35oz/s) or more
Estimated temperature of the rear oxygen sensor element 500°C (932°F) or more
Enable conditions at interrupt control are as follows  
Continuous time when rear oxygen sensor output voltage is less than 0.55 V 5000 ms or more
Air fuel ratio reduced from target air fuel ratio Value from Map
MAP SPECIFICATION

Output voltage of rear oxygen sensor (V) 0.000 0.150 0.200 0.400 0.600
Air fuel ratio reduced from target air fuel ratio (%) 8 8 4 4 4