What is the purpose of cleaning fuel injectors?

[DiMaverick]

Cleaning fuel injectors helps improve combustion efficiency. The cleaning method is as follows: 1. Hang the cleaning device on the front hood of the car; 2. Locate the engine's fuel supply and return lines; 3. Disconnect the return line from the engine and use an appropriate plug to block it; 4. Connect the fuel supply line to the outlet of the cleaning device; 5. Open the fuel tank cap and remove the fuel pump fuse to stop the fuel pump operation. A fuel injector is an electromagnetic valve that controls fuel spray into the engine by opening and closing, ensuring more complete fuel combustion. Symptoms of a damaged fuel injector include: 1. Abnormal vehicle vibration; 2. Excessive vehicle emissions; 3. Black smoke from the exhaust pipe; 4. Poor acceleration; 5. Accelerated piston ring wear.