Advantages and disadvantages of electric injection diesel engine and traditional large pump diesel engine

1, advantages: fuel savings and longer engine life.

2, disadvantages: lower speed than the gasoline engine (general speed of 1800-3000R / MIN), the quality of large, high cost of manufacturing and maintenance, noise, startup difficulties.

Two, EFI diesel engine:

1, advantages: simple structure, not high requirements for injectors, maintenance and reliability of the performance of the better, the oil requirements are not high.

2, disadvantages: although improved single-point EFI mixture distribution is not uniform, but in the fuel atomization and oil and gas mixing is still not more perfect.

Expanded Information:

Note:

1, the fuel must be clean: the fuel content of impurities in the fuel will accelerate the wear and tear of the electric fuel pump, reducing the service life of the fuel pump. In addition, the fuel is not clean will also lead to fuel filter and injector clogging, affecting the fuel supply pressure and the normal amount of fuel injection, reducing the performance of the engine.

2, timely replenishment of fuel: EFI engine electric fuel pump should meet the injection system sufficient fuel and stable working pressure. Fuel pumps are mostly installed in the tank immersed in oil to cool the pump motor and reduce noise, and can prevent air resistance. When there is insufficient fuel in the tank (some have a warning light flashing), the fuel should be replenished in time to prevent the fuel pump from being burned.

3, the correct choice of fuel: engine quality and grade of fuel have high requirements, the requirements of the EFI engine is higher. For cars equipped with catalytic converters and oxygen sensors, can only use unleaded high grade gasoline. If you use leaded gasoline, driving more than 400 kilometers, the exhaust gas catalytic converter will fail, the oxygen sensor will also fail, the normal work of the engine will be affected.

1.

Try to start easily

2.

Look at the idle speed is stable,

3.

Look at the color of the smoke, colorless or very light blue,

4.

Listen to the sound, clear and loud and powerful only for reference