| DTC Strategy |
- Determine if a multiple cylinder misfire or a cylinder specific misfire is occurring by monitoring crankshaft rotation speed
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- Poor connector connection
- Incorrect Valve Timing
- Uneven Compression
- Air Leakage
- Improper Fuel Pressure or Dirty Fuel
- Blocked/Leaking Injectors
- Leakage Between Cooling System and System
- Faulty ignition system
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| Enable Condition |
- Engine speed is between 600 and 6700 RPM
- Engine load is between 6.7 and 22.8% (depending on engine speed)
- Atmospheric pressure higher than 75 kPa
- Engine load variation less than 0 - 48%/s (depending on engine load)
- Throttle track change less than 2 - 80% (depending on throttle track)
- Engine coolant temperature above -7°C (19.4°F), If the coolant temperature at engine start is below -7°C (19.4°F), over 20°C (68°F)
- Not in a fuel shut-off state
- Without crankshaft vibration
- Engine roughness judgment: vibration/amplitude is more than 5000
- 47500μs (depending on engine speed and load)
- Not a rough road
- Rough road determination: Wheel acceleration is less than 13
- 16±(depending on vehicle speed)
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| Threshold Value |
- Misfire detected on 2 or more cylinders
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| Diagnostic Time |
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| MIL ON Condition |
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