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Home >> Subaru >> 2017 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P2101 To U1712) (2.0L) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2271 O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2 >> Execution Condition

Execution Condition

Secondary parameters Execution condition
Battery voltage ≥ 10.9 V
Deceleration fuel cut for 5000 ms or more Experienced
Estimated temperature of the rear oxygen sensor element ≥ 450°C (842°F)
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