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Home >> Subaru >> 2018 >> Outback 2.5i >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P2101 To U171F) (H4DO) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P2270: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 >> Execution Condition

Execution Condition

Secondary parameters Execution condition
Battery voltage ≥ 10.9 V
Sub feedback In operation
Amount of intake air ≥10g/s (0.35oz/s)
Estimated temperature of the rear oxygen sensor element ≥500°C (932°F)
   
Enable conditions at interrupt control are as follows  
Continuous time when rear oxygen sensor output voltage is less than 0.55V ≥ 5 s
Air fuel ratio reduced from target air fuel ratio = Value of Map
MAP SPECIFICATION

Output voltage of rear oxygen sensor
(V)
0.0 0.15 0.2 0.4 0.6
Air fuel ratio reduced from target air fuel ratio
(%)
15 15 4 4 4