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Home >> Hyundai >> 2018 >> Kona Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 147 (Engine Control System Diagnosis - 1.6L (2 Of 3)) >> DTC P0304-00: Cylinder 4-Misfire Detected >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different car, the 2021 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
TroubleShooting Condition Possible Cause
Main Action
  • Engine roughness through crankshaft speed fluctuation
  1. Poor connection
  2. Ignition system
  3. Fuel system
  4. Intake/exhaust air system
  5. Ignition timing
  6. Injector
Prerequisite
Condition
  • Engine speed is higher than 510 RPM and lower than 6500 RPM
  • Engine load is higher than Zero torque line
  • Coolant temperature is higher than -7°C (19.4°F)
  • Time after engine start is higher than 0 sec
  • Fuel Level is greater than 15%
Case 1 Threshold Value
  • Misfire rate is greater than 2.5% pre 1000 revolutions
MIL
  • 2 driving cycle
Case 2 Threshold Value
  • Rate of misfire per 200 revolutions is greater than 5~33% in driving condition
MIL
  • Immediately (Blink)
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