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Home >> Kia >> 2015 >> Forte LX, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 2) - 1.8L >> DTC P2187: System Too Lean At Idle (←Additive) (Bank 1) >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring deviation of long term fuel trim control in Idle
  1. Air leakage in intake, exhaust or EVAP system
  2. Faulty PCV system
  3. Faulty sensor signals
  4. Fuel system
Enable Conditions
  • Engine Coolant temperature >73°C (163°F)
  • Idle Lambda adaptation active conditions:
    • Engine speed < 900rpm
    • Mass Fuel Flow (MFF) < 0.032g/rev
    • Low estimated fuel dilution in oil (only for too rich system)
Threshold Value
  • Idle long term fuel trim has reached Max. Limit for more than 20 sec. within 90 sec.
  • Max Limit:+0.008g/rev(+4mg/stk)
Diagnostic Time
  • 90 sec.
MIL On Condition
  • 2 Driving Cycles