How to clean fuel injector and throttle valve

There are two ways to clean the throttle of Pacific Auto Network: one is disassembly-free cleaning, and the other is disassembly-free cleaning. Method of cleaning the nozzle: Prepare the cleaning agent, remove the oil inlet pipe from the connection point of the engine, select a suitable connector, connect the oil inlet pipe with the oil outlet pipe of the cleaning machine, start the engine and start cleaning until the cleaning agent is used up.

Throttle is a controllable valve that controls air to enter the engine. After the air enters the intake pipe, it will be mixed with gasoline to form a combustible mixture, and the combustion is successful. It connects the air filter and the engine block, and is called the throat of the automobile engine.

After the dirty throttle affects the air intake, the throttle reacts slowly or the flap is stuck. What kind of faults will happen to the car: it is difficult to start, especially the most obvious cold car, unstable idle speed, jitter, increased fuel consumption and slow response of the fuel filler door. After cleaning, it is necessary to cooperate with the engine control unit to remember the angle of the open position again, so that the fuel injection quantity of the injector can be determined by controlling the intake air quantity.

The injector itself is a normally closed valve (normally closed valve means that the valve is always closed when there is no control signal input; When there is no control signal input, the normally open valve is always open. The valve needle moves up and down to control the opening and closing of the valve. When the ECU sends the fuel injection instruction, its voltage signal will make the current flow through the coil in the fuel injector, generate a magnetic field to attract the valve needle and open the valve, so that the fuel can be ejected from the fuel injection hole. The biggest advantage of jet fuel supply is that the control of fuel supply is very accurate, so that the engine can have the correct air-fuel ratio in any state, which not only keeps the engine running smoothly, but also conforms to the norms of environmental protection laws and regulations. (Photo/Text/Photo: Pacific Auto Network Chen Yalan)