1. Power performance of the engine is improved.
2. Emission pollution degree is reduced (optimal air fuel ratio, three way catalyst, HC, CO, NO)
3. Fuel consumption is reduced and economy is good (fuel injection quantity).
4. Low-temperature starting performance is improved (cold start injector, ECU, position of the injector)
5. Idle speed is steady; industrial and mining transition is smooth; work is reliable; sensitivity is high (ECU, sensor).