Misunderstandings About Cleaning Fuel Injectors And When To Clean Them

Misunderstandings about cleaning Automobile Fuel Injector and when to clean When the injector is clogged, the injection is not smooth, or there are carbon deposits and adhesives in the gap of the injector, and the designed injection volume or atomization effect cannot be achieved, it needs to be cleaned. But cleaning the injector does not mean that the more frequently the better, or how many kilometers or how long it must be cleaned. In fact, the cars I have come into contact with really need to be cleaned very little. One is that after the fuel is filtered through the dense mesh of the gasoline pump and then filtered through the fuel filter, the size of the impurity particles in the gasoline flowing through the injector is not of the same order of magnitude as the gap of the injector, so don't worry, it won't be blocked. Another is that the adhesives contained in the gasoline are difficult to store when passing through the gap and sprayed out at high speed by the gasoline, so it is said that water drips through the stone. What's more, the needle valve and the contact surface are hit hard countless times every day, so how can there be adhesive here? Another thing is that most models use the out-of-cylinder injection method, and the temperature here is not high, which is several times better than the working environment of the spark plug. To be honest, it is difficult to think of any fault. The position that is really easy to affect atomization should be the outer surface of the fuel injection nozzle. Cars with poor combustion are prone to recoil and contaminate this position. This is also divided into two parts. Cars with good combustion will not recoil. Cars with poor combustion will be contaminated again after running a few kilometers even if they are cleaned. Cleaning is useless. The root cause must be removed first to cure the disease. For example, a car with good combustion will be clean no matter when you open the spark plug; a car with poor combustion will still be black after 5 minutes if you replace it with a new spark plug, which is full of carbon deposits. The so-called advanced cleaning agents all contain things like benzene or aromatic hydrocarbons. When added to the engine for combustion, they can melt some of the carbon deposits. The cheapest cleaning agent is the carburetor cleaning agent, which can also be added for combustion. It costs 4 yuan a bottle. Of course, there are better brands, but the price is by no means as high as the hype. In fact, normal engine combustion is also a process in which carbon deposits are continuously generated and burned away. It is a relatively conservative process. There is no such thing as carbon deposits at all. Some friends always feel good when they see the black water flowing out from the back of the exhaust pipe when cleaning carbon deposits. In fact, 90% of the black water is not carbon deposits inside the engine. What's more, after washing and cleaning, burning gasoline will continue to produce a certain amount of carbon deposits until a balance state is reached. It doesn't make much sense. On the other hand, the combustion temperature of benzene aromatic hydrocarbons in the cylinder is much higher than that of gasoline. It is not good for the car to take a sauna for no reason. So don't wash it unless it is absolutely necessary. Don't regard cleaning the fuel injector as part of routine vehicle maintenance It is actually unnecessary to treat the cleaning of the fuel injector as part of the routine maintenance of the vehicle. The quality of gasoline has improved greatly compared with the past, and the gasoline filter has filtered out all solid impurities. Except for special reasons, the fuel injector can work normally for more than 60,000 kilometers without cleaning. Too frequent cleaning of the fuel injector will affect the tightness of the cone raft and accelerate its damage process, which will increase fuel consumption. Any cleaning agent has a certain degree of corrosiveness. While dissolving impurities, it also corrodes the needle valve and valve seat of the fuel injector. The current high-tech engines no longer use single-hole or double-hole nozzles, but use multiple nozzles. The precision can be imagined. If corrosive cleaning agents are used frequently, the nozzles will become larger and larger, and the amount of fuel injection cannot be accurately controlled. Another major hazard of cleaning agents is that some of its components may damage the catalytic converter. The focus of car maintenance is still on the throttle. If there is a lot of putty, buy a bottle of better carburetor cleaner, remove the air filter, start the fire and constantly change the throttle size, and spray it into the pipe. This will not only clean the throttle, but also clean the sensor hot wire of the air flow meter. Never disassemble the throttle to clean it. This place is the same as the carburetor. Closing and opening the door is a process of continuous wear. Even if it is worn, the two worn surfaces still fit tightly together. If it is not installed properly after disassembly, the position will change and it will not be closed tightly.