| Main Action |
|
- 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
|
| Prerequisite condition |
- Engine load ratio is greater than 10 to 60%.
- Engine speed is between 450 RPM and 6700 RPM.
- Barometric pressure (BARO) is greater than 75 kPa.
- Engine load ratio gradient and throttle gradient per second is less than 12% to 60% and 58.6% to 1265.6% respectively.
- Engine coolant temperature is higher than 20°C (68°F).
- Battery voltage is between 11V and 16V.
- Fuel cut-off is not functioning with no rough condition.
|
| Threshold Value |
- Misfire is detected on 2 or more cylinders.
|
| Diagnostic Time |
|
| Mil On Condition |
|