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Home >> Kia >> 2019 >> Rio LX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 6) >> DTC P0133-00: O2-Sensor Circuit Slow Response (Bank 1 / Sensor 1) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Response rate monitor
  • Poor connector connection
  • Leak or clog in intake air system
  • Injector
  • Fuel pressure
  • HO2S (B1S1)
Enable Conditions
  • Sensor ceramic temp is greater than 730°C (1346°F)
  • Purge active time is over 5s
  • Engine load is at between 20 and 85%
  • Catalyst temp(model) is greater than 400°C (752°F)
  • Fuel system status is Closed loop & No fuel cut-off
  • Engine speed is at between 1320 and 2520RPM
Threshold Value
  • Ratio of expected area to actual area is less than 0.2
Diagnostic Time
  • 6 switches set point steps (3 for Lean-Rich, 3 for Rich-Lean)
MIL ON Condition
  • 3 driving cycles