Where is the throttle of the new Fit engine and how to clean it?

The poor air quality in the city caused the accelerator of the car to get dirty quickly. I didn't do idle study after washing the throttle myself before, and I always felt that the fuel consumption was high. This time, I bought a set of Honda HIM at a big price, and I am going to thoroughly wash the throttle and do computer matching to learn idle speed. Honda HIM and Dell D630 notebook with serial port first remove the battery, then remove the air filter, and finally remove the four fixing screws of the throttle, so that the throttle body can be opened. Regardless of the water pipe, it has nothing to do with the inside of the throttle body. You can see that there are many black attachments and a red sealing ring at the entrance of the resonant cavity inside the throttle body. You can also see that after washing with accelerator cleaner, there are many black attachments on your mouth. In the meantime, use a fine-wool toothbrush and non-woven fabrics. Then restore it. Go back to the cockpit and connect him to the computer, turn on the HDS on the computer, clear all DTC first, then reset the ECM, and then start the car. ...