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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 151 (Engine Control System Diagnosis - 2.0L (3 Of 3)) >> DTC P2188-00: System Too Rich At Idle (Bank 1) >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
Item  Detecting Condition  Possible Cause 
Main Action
  • Monitoring deviation of long term fuel trim control in Idle
  1. Air restriction in intake or exhaust system
  2. Front HO2S or MAFS contamination
  3. Faulty sensor signals
  4. Fuel system
Prerequisite Condition
  • Engine coolant temperature is higher than 73 ° (163.4 °F).
  • Idle Lambda adaptation active conditions:
    • Engine speed is lower than 900 RPM.
    • Mass Fuel Flow is lower than 0.032g/rev.
  • Estimated low fuel dilution in oil (only for too rich system)
Threshold Value
  • Long term idle fuel trim reaches minimum limitation for 20 seconds or longer within 90 seconds. (Minimum limitation is -0.007 g/rev.)
Diagnostic Time
  • 90 Seconds
MIL-On Condition
  • 2nd Driving Cycle