| DTC Strategy |
- Calculation of engine roughness
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- Faulty spark plugs or Ignition coil
- Incorrect valve timing
- Uneven compression
- Air leakage
- Improper Fuel pressure or dirty fuel.
- Blocked/Leaking injectors
- Leakage between cooling system and cylinder
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| Enable Conditions |
- Engine load ratio: 14~64%
- 500< Engine speed (rpm) <6700
- Mass air flow gradient/sec.: 12~60%
- Throttle gradient/sec.: 0.5~10.5%
- Coolant temperature >20°C (68°F) if start temp. <-7°C (19°F)
- No relevant failure
- Fuel cut-off not active
- 11V< Battery voltage <16V
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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 |
- Immediate (Misfire enough to damage the catalyst)
- 2 Driving Cycles (Misfire breaking the emission regulation)
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