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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 91 (Engine Control System Diagnosis - 1.6L (3 Of 3) - Optima (Except HEV)) >> DTC P2188: System Too Rich At Idle (Bank 1) >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Additive Long Term Fuel Trim lower limit reached
  1. Blocking of intake system
  2. Fuel leakage in injector
  3. Improper fuel pressure
Enable Conditions
  • Torque greater than 5.8 % and less than 30%
  • Engine speed less than 1000RPM
  • ECT greater than 60°C (140°F)
  • IAT less than 80°C (176°F)
  • Fuel System Status: Closed loop
  • Canister purge control off
Threshold Value
  • Long Term Fuel Trim (additive) less than -7.50%
Diagnostic Time
  • 80s
MIL ON Condition
  • 3 driving cycles
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