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Home >> Subaru >> 2023 >> WRX Base, Automatic CVT Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P013F: O2 Sensor Delayed Response - Lean To Rich Bank 1 Sensor 2 >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
Battery voltage 10.9 V or more
Main feedback In operation
Rear oxygen sensor voltage when fuel cut has completed Less than 0.15 V
(Time while the fuel shut-off function is in operation More than 3 s
Not in operation
Fuel shut-off function after experienced above)  
Estimated temperature of the rear oxygen sensor element More than 450°C (842°F)
Compensation to rich Rich
Amount of intake air 25 g/s (0.88 oz/s) or more