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Home › Kia › 2017 › Niro EX › 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

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Performance monitoring
  • Poor connector connection
  • Ignition system
  • Fuel system
  • Intake/exhaust system
  • Timing
  • Injector
  • ECM
Enable Condition
  • Engine speed: 510 to 6500RPM
  • Coolant temperature at start higher than -7.5°C (18.5°F)
  • Not rough road driving condition
  • Fuel tank level 15%
Threshold Value Case1
  • Misfire probability over 5.58% per 1000 revolution
Case2
  • Misfire probability (catalyst damage misfire rate) over 6.42 to 47.4% (depending on operation range) per 200 revolution
Diagnostic Time
  • Continuous
MIL ON Condition
  • 2 driving cycles
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