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Home › Hyundai › 2014 › Veloster Base, Standard Trans › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (2 Of 2) - Non-Turbo › DTC P2271: 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
  • No signal activity
  1. Poor connection
  2. Short to Power in signal circuit
  3. HO2S (B1/S2)
  4. ECM
Enable Conditions
  • Mass flow is between 20 and 120kg/h
  • Delta Mass Flow 2kg/h
Threshold Value
  • Downstream O2S voltage is higher than 0.65V for 8 sec.
  • Downstream O2S voltage is higher than 0.25V for 0.2sec(Fuel cut)
Diagnostic Time
  • -
MIL ON Condition
  • 2 Driving Cycles
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