Maintenance of automobile throttle and oil nozzle

Regular maintenance of intake pipe and EFI throttle can improve engine combustion efficiency, restore strong engine power, reduce engine fuel consumption, reduce automobile exhaust emissions, eliminate formed carbon deposits, delay the deposition of new carbon deposits, improve engine stability, make engine run quieter, prolong engine service life, reduce comprehensive maintenance cost, clean up carbon deposits and improve intake and fuel injection accuracy. One of the overall quality characteristics of China fuel is high olefin hydrogen content and poor olefin hydrogen stability. It is easy to be oxidized and condensed in the engine fuel system, resulting in gum and deposits: gum and deposits will block the oil injection hole of the electric nozzle (the diameter is only 1-2 microns, which is thinner than human hair), and gum \ deposits will be deposited on the valve seat and burned in the combustion chamber, which will easily generate hard carbon deposits. Poor sealing of valve oil seal will lead to oil infiltration, and carbon deposit will be formed in combustion chamber and valve after oil combustion. If the fuel containing oil and water is added to the car, the combustion temperature will be lowered due to the existence of water when the engine is working, and the fuel oxidized at low temperature will lead to carbon deposition. In addition, the fuel that is not completely burned will continue to evaporate and oxidize, producing some soft black carbon deposits in the intake pipe (especially behind the throttle). These colloid/deposits and carbon deposits will cause: blocking the needle valve and valve hole of the injector, resulting in poor power performance and unstable engine idle speed. Hard carbon deposits formed on the piston crown and cylinder head due to the increase of fuel consumption and the deterioration of exhaust emissions are likely to lead to engine knocking. The structure of carbon deposit is similar to that of sponge, which will absorb a part of the fuel injected into the cylinder, dilute the concentration of the mixed gas that really enters the cylinder, aggravate the problem of carbon deposit, and make the wall of the intake pipe rough. The intake air will generate eddy currents in these rough places, which will affect the intake effect and the quality of the mixed gas that blocks the idle passage. When the EFI engine is running, part of the exhaust gas produced by the combustion of combustible gas in the cylinder will pass through the intake valve, and the intake pipe will produce carbon deposit at the throttle body. After the engine is turned off, the oil vapor in the intake pipe will be cooled into liquid and accumulated in the throttle body. Unfiltered air impurities will remain in the throttle valve, which will form scale after a long time. As a result, the switch resistance increases, and when the engine idling is unstable, eddy current will be generated, which makes it difficult to control the air resistance and low-speed throttle. When the cold start is difficult, the computer transmission signal is delayed and an error occurs. Cleaning the three-way catalytic converter regularly can improve the exhaust emission, activate the three-way purification function, improve the fuel atomization performance, reduce the engine fuel consumption and improve the fuel combustion efficiency. Restore power, improve cold start ability and prolong ternary service life. Therefore, in daily use, it is generally recommended to clean the oil nozzle once every 30,000 kilometers, and the throttle valve, intake pipe and three-way catalytic converter should be cleaned once every15,000-20,000 kilometers.