What should I do if there is something wrong with the throttle of Fox 20 1 1?

I am 07 Fox. There is something wrong with the design of Fox's air intake system. Throttle is easy to deposit carbon, which leads to unstable idle speed. My car's tachometer jumped wildly when I stepped on the brakes to slow down, and even caused the engine to stall.

Solution: Clean the throttle every 5000 kilometers. I bought a bottle of electronic accelerator cleaner and took it down to wash it myself. Please leave a message if you need to clean up the tutorial.