For electronic fuel injection vehicles, do not be tempted by cheap cleaning methods when using non disassembly cleaning machines, which are commonly used in the market. The cleaning is charged based on the number of fuel injectors, and generally one bottle of cleaning agent can clean four fuel injectors. It should be noted that the calorific value of various cleaning agents is different. In addition, due to the differences in chemical additives, inferior cleaning agents can cause certain damage to the sealing ring of the fuel injector and the three-way catalyst during the cleaning process, and long-term cleaning is beneficial to the relevant components of the engine.

There are currently three types of non disassembly cleaning on the market: cleaning agent cleaning, non disassembly cleaning machine cleaning, and ultrasonic cleaning.

Add the cleaning agent directly into the fuel tank for cleaning

Just add the appropriate cleaning agent to the fuel tank. However, there are many types of cleaning agents on the market currently, and this method is simple and easy to implement. Cleaning agents with different specifications and poor quality are prone to damage to the intake and exhaust valves, pistons, and cylinder walls during the cleaning process due to their different calorific values (usually higher, with higher temperatures and pressures during combustion than gasoline mixtures, resulting in increased thermal and mechanical loads on the components).

The cleaning process is to remove the carbon deposits in the cylinder, so the exhaust emissions will definitely temporarily exceed the standard. The more obvious the cleaning effect, the more intense the exhaust emissions will be, indicating that most of the carbon deposits in the cylinder have been cleaned away

Cleaning machine without disassembly

The principle of using a non dismantling cleaning machine to clean carbon deposits in the cylinder by replacing oil combustion with cleaning agents is to utilize the pressure and circulation network of the engine's original system. Then discharge it through the emission system. The advantage of a non dismantling cleaning machine is that it is convenient and fast, and has a significant cleaning effect on the fuel injector; The disadvantage is that the front section of the intake duct cannot be cleaned and the quality of the fuel injector cannot be checked. For new cars, the cleaning effect can generally reach about 80%. The effect of "old cars" that are not regularly cleaned according to a certain mileage is slightly worse, but the effect is still very obvious after washing for a hundred kilometers

ultrasonic cleaning

Unlike using a cleaning machine, the cost of this type of cleaning is generally higher. To remove the fuel injector. Its advantage is that ultrasonic waves can be used to detect the presence of atomization, response level, switch sensitivity, and oil leakage of fuel injectors. But it also has its drawbacks, as the solenoid valve of the fuel injector does not move during the cleaning process, making it difficult to clean the needle holes in the valve core. With the current new ultrasonic cleaning machine, AC power can be applied to the valve core to open it and make it move back and forth through the eye core, which has a relatively good cleaning effect on the valve core.

Article source: Jiangmen Ultrasonic Cleaning Machine http://www.kpzfcsb.com/