Has the throttle of the EFI car been cleaned?

In multipoint injection, it is necessary to clean the throttle valve. Here's how to clean the throttle valve: 1. Turn off the ignition switch and remove the negative electrode of the battery. Remove the throttle line, the air inlet hose and the screw for fixing the throttle valve in turn. Clean the throttle with carburetor cleaner, and wipe the parts that cannot be cleaned with cotton thread; 2. After cleaning, install the throttle valve in the order of removing the throttle valve, and try to see if the air intake of the cleaned throttle valve is smooth; 3. When cleaning the throttle valve, it is not necessary to disassemble it, but the sealing part of the inlet steam must be cleaned, and the idle motor must be disassembled to clean it. Nozzle borrowing and cleaning and no disassembly have their own advantages and disadvantages; 4. In general, it is recommended that the repair station avoid disassembly and washing to prevent other unnecessary waste, such as replacing the sealing ring or installing some other gaskets after disassembly, so as to avoid the phenomenon of oil leakage and air leakage that delay the owner's time during disassembly and assembly.