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Home >> Infiniti >> 2017 >> QX30 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (5 Of 5) >> DTC/Circuit Diagnosis >> DTC P2271: O2 Sensor >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC No. CONSULT screen terms DTC detecting condition
(Trouble diagnosis content) Malfunction type
P2271 00 O2 SENSOR B1 SENSOR 2
(O2 sensor signal biased/stuck rich bank 1 sensor 2)		 NO SUBTYPE INFORMATION The signal from oxygen sensor 2 (cylinder bank 1) is shifted towards Rich.
26 SIG RTE OF CHNG BLW THRESHLD The signal from oxygen sensor 2 (cylinder bank 1) is shifted towards Rich. The signal change rate is below the permissible limit value.
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