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Home >> Hyundai >> 2021 >> Accent Limited >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 6) >> DTC P0133-00: O2 Sensor Circuit Slow Response (Bank 1 Sensor 1) >> DTC Information And Inspection >> DTC Detecting Condition
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DTC Information And Inspection: DTC Detecting Condition

Trouble Shooting Condition Possible Cause
Main Action
  • Rationality check
  1. Poor connection
  2. Leak or clog in intake air system
  3. Injector
  4. Fuel pressure
  5. S1
Prerequisite Condition
  • Sensor Ceramic Temp. is higher than 730°C (1, 346°F)
  • ECT is higher than 65°C (149°F)
  • Purge active time is higher then 5 sec
  • Engine load is higher than 25% and lower than 110%.
  • Fuel cut condition OFF
  • Closed loop fuel control
  • Engine speed is higher than 1320 RPM and lower than 3200 RPM.
Threshold Value
  • Ratio of expected area to actual area is lower than 0.35
Diagnostic Time
  • -
MIL
  • 2 Driving cycle