How often do you clean the throttle and nozzle?

How many kilometers is the throttle nozzle cleaned? Cleaning time: If the vehicle is in good condition and the oil quality is good, it can be done every 40,000-60,000 kilometers. Automobile fuel injector is a simple electromagnetic valve, which generates suction, the needle valve is sucked up, the nozzle hole is opened, and the fuel is ejected at high speed through the annular gap between the shaft needle and the nozzle hole at the head of the needle valve, forming a fog. Its quality determines the performance of the engine. If the injector is blocked, it will directly affect the performance of the car. When the nozzle becomes dirty, the car will have the following obvious performance: 1. Engine noise becomes louder, especially in low gear; 2. The throttle is not sensitive, the driving is not smooth, and there is a lag phenomenon after stepping on the throttle. After the accelerator is slammed in neutral, the engine speed rises slowly; 3. Idle jitter, especially when starting, is easy to shake, and there is a slight cylinder shortage in low-gear and low-speed upshifts. Reasons for nozzle blockage: Because gasoline itself contains colloid and impurities, or dust and impurities brought in during storage and transportation, sludge-like deposits are formed in the automobile fuel tank and intake pipe over time; Secondly, the unstable components in gasoline react at a certain temperature to generate colloid and resinous viscous substances. When these viscous substances burn in fuel injectors, intake valves and other parts, the deposits will become hard carbon deposits. This situation will lead to accelerated wear, unstable idle speed, rising fuel consumption, weak acceleration and difficult starting. Million car purchase subsidy