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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 83 (Engine Control System Diagnosis - 2.0L (2 Of 6)) >> DTC P0171-00: System Too Lean (Bank 1) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
Item Detecting Condition Possible Cause
DTC Strategy
  • Monitor the fuel trim value
  • Air leakage
  • Improper fuel pressure
  • PCV valve stuck
  • Clogging of injector
  • Fuel system
Enable Conditions
  • Engine coolant temperature is higher than 60°C (140°F)
  • Idle long term fuel trim active conditions
    • Engine speed is lower than 900RPM
    • Mass fuel flow is lower than 16mg/stroke
    • Canister purge not active
  • Part load long term fuel trim active conditions
  • Engine speed is between 1150 and 4000RPM
  • Mass fuel flow is higher than 10mg/stroke
  • Canister purge not active
Threshold Value
  • Idle long term fuel trim is higher than 4.0mg/stroke
  • Part load long term fuel trim is higher than 25%
Diagnostic Time
  • 90s
MIL ON Condition
  • 2 driving cycles