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Home >> Kia >> 2017 >> Cadenza Technology >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (3 Of 6) >> DTC P0300-00: Random/Multiple Cylinder Misfire Detected >> DTC Information >> DTC Detecting Condition
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DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Monitoring the rotational speed of the crankshaft
  1. Ignition plug
  2. Ignition plug cable
  3. Air leakage
  4. Belt deflection/crankshaft position sensor air cap
  5. Incorrect valve timing
  6. Injector
  7. Fuel pressure
  8. Engine compression pressure
Enable Conditions
  • Engine load ratio higher than 6.7 to 28%
  • Engine speed (400RPM to 6700RPM)
  • Barometric pressure model higher than 75kPa
  • Engine load ratio gradient lower than 12 to 60%/s
  • Throttle gradient lower than 58.6 to 1265.6%/s
  • Coolant temperature is higher than 20.3°C (68.54°F) (Temperature is lower than -7°C (19.4°F) at engine "ON")
  • Battery voltage higher than 11V and lower than 16V
  • Fuel cut is inactivated
Threshold Value Case 1
  • Detecting misfire in each cylinder
Case 2
  • Catalyst temperature above 1000°C
Diagnostic Time Case 1
  • 1000 or 4*1000 revolution
Case 2
  • 200 or 3*200 revolution
MIL ON Condition Case 1
  • 2 driving cycles
Case 2
  • 2 driving cycles