Why is the fuel injector always broken and how to replace it?

Pure parts (oil-water separator, diesel filter element) are not used, resulting in nozzle wear.

First, remove the engine cover, remove the intake pipe, unplug the power plugs of the four oil nozzles, and press the clip on the interface to pull it out. Be careful not to use violence. In addition, the throttle and idle motor are pulled out at the same time. The fuel nozzle assembly bracket is fixed with two screws. Unscrew the left and right screws of the fuel nozzle assembly, remove the assembly and take out the fuel nozzle.

Precautions for fuel injectors

Nozzle must be cleaned regularly, long-term non-cleaning or frequent nozzle cleaning will cause bad effects. As for the cleaning time, it depends on the condition of the car and the quality of fuel added at ordinary times. Generally speaking, it is recommended that most users clean it once every 20,000 ~ 30,000 km. The car is in good condition and the fuel quality can be extended to about 40,000 ~ 60,000 kilometers.

Do not lower the fuel label. For gasoline nozzles, the fuel label represents the antiknock property of this oil. Generally speaking, the higher the quality of nozzle cleaning agent, the higher the compression ratio and the higher the fuel label to be filled. This is also the focus of Sanyuan Cleaning Shop.