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Home >> Kia >> 2004 >> Sorento EX, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> Fuel System & Fault Isolation >> DTC Troubleshooting Procedures >> DTC P0300: Random/Multiple Cylinder Misfire Detected >> DTC Detecting Condition
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DTC P0300: Random/Multiple Cylinder Misfire Detected: DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item Detecting Condition Possible cause
DTC Strategy
  • Fluctuation of crank angular acceleration is monitored
  • Poor connection
  • Defective Spark plugs
  • Defective Spark plug cables
  • Defective injector
  • Improper fuel line pressure
  • Improper engine compression
  • Defective ECM
Enable Conditions
  • Engine speed = 500~6187 rpm,
  • Engine load = 11~100%
  • Fuel cut = off
  • No sudden acceleration
  • No sudden deceleration
  • No shift change
Threshold value
  • Misfire ratio within 1000 revs > 2.0% (FTP emission > 1.5 *emission standard)
  • Misfire ratio within 200 revs > 10~25% (Catalyst temp. > 950°C (1742°F))
Diagnosis Time
  • 1000 revs. Continuous/200 revs. Continuous
MIL On Condition
  • 2 driving cycles