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Home >> Kia >> 2016 >> Optima SX Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 108 (Engine Control System Diagnosis - 1.6L (2 Of 3) - Optima (Except HEV)) >> DTC P0301: Cylinder 1-Misfire Detected >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

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Item Detecting Condition Possible Cause
DTC Strategy
  • Calculation of Engine Roughness
  1. Poor connection
  2. Ignition system
  3. Fuel system
  4. Intake/exhaust air system
  5. Ignition timing
  6. Injector
Enable Conditions
  • Time after engine start greater than 25s
  • No fuel cut off condition
  • No rough road detection
  • No CKP sensor error
Case 1 Threshold Value
  • Misfire rate greater than 10% of total misfire rate (emission threshold)
Diagnostic Time
  • -
MIL ON Condition
  • 3 driving cycle
Case 2 Threshold Value
  • Misfire rate greater than 25% of total misfire rate (catalyst damage threshold)
Diagnostic Time
  • -
MIL ON Condition
  • Immediate