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Home › Hyundai › 2021 › Ioniq Plug-In Hybrid Limited › Repair and Diagnosis › Engine Performance › System › Engine Control System Diagnosis (PHEV) (3 Of 3) › DTC P2270: O2 Sensor Signal Stuck Lean (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. Open or Short to ground in harness
  3. HO2S (S2)
  4. ECM
Enable Conditions
  • -
Threshold Value
  • Downstream O2S voltage is lower than 0.75V
Diagnostic Time
  • -
MIL ON Condition
  • 2 Driving Cycles
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