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Home >> Subaru >> 2020 >> WRX STI >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (1 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P013B: O2 Sensor Slow 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
Main feedback In operation
(Duration of fuel cut ≥3000 ms
Fuel shut-off function from above) Not in operation
Output voltage value of rear oxygen sensor ≥0.2V
Compensation to rich Rich
Amount of intake air ≥10g/s (0.35oz/s)
Estimated temperature of the rear oxygen sensor element ≥500°C (932°F)