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Home >> Kia >> 2017 >> Optima EX >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis - 2.4L (3 Of 3) (Except HEV) >> DTC P2271-00: O2 Sensor Signal Stuck Rich (Bank 1 Sensor 2) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Electrical monitoring
  1. Poor Connector Connection
  2. Faulty Downstream O2 Sensor
Enable Conditions
  • No catalyst over heating protection
  • Battery voltage higher than 11V and lower than 16V
Threshold Value
  • Downstream O2 sensor voltage lower than 0.2V when lambda set point is 1.15
Diagnostic Time
  • 7 sec. after lambda set point shift to corresponding side
MIL ON Condition
  • 2 Driving cycles
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