When the new fuel injector is replaced and the engine is started, the fuel injector of cylinder 1 is washed away from the solenoid valve into two sections, and the fuel injector is directly scrapped. It is still the case when three fuel injectors are replaced.
When I went to the service station for maintenance, I found that the valve sank and was seriously worn. Because the service station does not have the technical equipment to replace the valve seat ring.
After removing the copper sleeve of the fuel injector with a special tool, it was found that there was serious carbon deposition and the sealing ring was damaged.
