Diesel injectors and gasoline injectors are different in several ways:

1. Fuel delivery: Diesel injectors deliver fuel directly into the combustion chamber, whereas gasoline injectors deliver fuel into the intake manifold, where it is mixed with air before entering the combustion chamber.
2. Fuel pressure: Diesel injectors operate at much higher fuel pressures than gasoline injectors. This is because diesel fuel is much denser than gasoline, and requires more pressure to atomize and vaporize properly.
3. Injection timing: Diesel injectors are timed to inject fuel at a specific point in the compression stroke, while gasoline injectors are timed to inject fuel at a specific point in the intake stroke.
4. Injection duration: Diesel injectors have a longer injection duration than gasoline injectors, as the fuel needs more time to vaporize and mix with the compressed air.
5. Spray pattern: Diesel injectors have a more intense and focused spray pattern than gasoline injectors, which is needed to properly mix the fuel with the compressed air.
6. Efficiency: Diesel engines are more efficient than gasoline engines, because of the high compression ratio used in diesel engines and the direct injection of diesel fuel into the combustion chamber. This means that more energy can be extracted from the fuel, resulting in better fuel economy and lower emissions.

In summary, diesel injectors and gasoline injectors are different in terms of fuel delivery, fuel pressure, injection timing, injection duration, spray pattern and efficiency. While gasoline injectors are timed to deliver fuel into the intake manifold, diesel injectors deliver fuel directly into the combustion chamber and operate at a higher pressure. Due to the high compression ratio of diesel engines, they are more efficient than gasoline engines, and the direct injection of diesel fuel into the combustion chamber improves the fuel economy and reduces emissions.