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Home >> Kia >> 2011 >> Soul +, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 2) - 2.0L >> DTC P0139: O2 Sensor Circuit Slow Response (Bank 1/Sensor 2) >> General Information >> DTC Detecting Condition
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General Information: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible Cause
DTC Strategy
  • Switching Time check at entry in Fuel Cut-Off
  • Leak in intake or exhaust system
  • Faulty fuel system.
  • Front and rear HO2S connections reversed.
  • Poor connection or damaged harness
  • HO2S contamination
Enable Conditions
  • Catalyst temp. model >350°C (662°F)
  • No relevant failure
  • 11V < Battery voltage
  • Downstream O2 sensor signal at entry in fuel cut off > 0.55V
  • 4.8 Km/h (3 MPH)<Vehicle speed<180 Km/h (112 MPH)
Threshold Value
  • Average ratio (between measured and maximum allowed switching time at entry in fuel cut-off) > 1
Diagnostic Time
  • 3 fuel cut-off phases
Mil On Condition
  • 2 Driving Cycles
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