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Home >> Kia >> 2019 >> Forte FE, Standard Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 6) >> DTC P016B-00: Closed Loop Air/Fuel Ratio Control At Limit-System Too Rich >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • STFT deviation monitoring
  • Poor connector connection
  • Air leakage or restriction in intake or exhaust system
  • Dirty engine oil or oil level too high
  • Faulty PCV
  • Faulty injector
  • Faulty fuel system
  • Faulty EVAP system
  • Faulty sensor signals
Enable Conditions
  • ECTS > 73°C (163°F)
  • Fuel trim - active
Threshold Value
  • SFTF < -30%
Diagnostic Time
  • 90s
MIL ON Condition
  • 2 driving cycles
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