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Home >> Hyundai >> 2014 >> Azera Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 3) >> DTC P2271: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2) >> General Information >> DTC Description
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DTC Description

Checking output signals from HO2S under detecting condition, if HO2S's signal is rich during fuel cut-off conditions, PCM sets P2271. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycles.

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