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Home >> Subaru >> 2018 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (3 Of 3) >> EFI System (FA20) >> DTC P2271: O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 2) >> Circuit description >> Enabling Conditions
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Enabling Conditions

Overlap prohibited DTC None
Battery voltage 10.9V or more
Time elapsed after fuel cutoff 5 seconds or more
Oxygen sensor element estimated temperature 500°C (842°F) or more
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