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Home › Hyundai › 2021 › Venue Denim › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (6 Of 6) › DTC P2271-00: O2 Sensor Stuck Rich - Bank 1 Sensor 2 › DTC Information And Inspection › DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

Troubleshooting Condition Possible Cause
Main Action
  • Electrical inspection
  1. Poor contact of connector
  2. O2 Sensor (Down)
Prerequisite Condition
  • The battery voltage is higher than 10.7V
  • The lambda is than 0.8 for 8 sec
Threshold Value
  • The voltage of the O2 Sensor (Down) is less than 0.69V when the lambda set point is 0.7
Diagnosis Time
  • 10 sec
MIL
  • 2nd Driving Cycle
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