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Home >> Kia >> 2015 >> Optima Hybrid >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 3) (HEV) >> DTC P0133: O2 Sensor Circuit Slow Response-Bank 1 Sensor 1 >> DTC Description >> DTC Detecting Condition
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DTC Description: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Check HO2S Signal Amplitude
  1. Leak in intake or exhaust system.
  2. Poor connection or damaged harness
  3. HO2S contamination
Enable Conditions
  • see catalyst diagnosis (P0420) activation condition
  • No relevant failure
  • 11V
Threshold Value
  • Integral (Lambda signal amplitude measured / Lambda signal amplitude of a slow sensor) > 1.0
Diagnostic Time
  • 25 lambda controller cycle
Mil On Condition
  • 2 Driving Cycles
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