LEMON Manuals
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Subaru
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2016
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WRX STI Series.HyperBlue
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Repair and Diagnosis (Single Page)
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Engine Performance
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Testing & Diagnosis
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Diagnostic Trouble Code (DTC) Detecting Criteria
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Diagnostic Trouble Code (DTC) Detecting Criteria
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DTC P2271 O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2
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Execution Condition
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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
≥ 500 °C (932 °F)