Idle speed is unstable. Emergency help?

First, remove and clean the throttle valve. Be sure to remove it and clean it, mainly to clean the installation position of idle motor. It's not clear inside. If it takes a long time, scrape it off bit by bit with a cotton swab to make sure the test effect is clear! Generally can solve the problem. If it doesn't work, take off your motor, break it and replace it with a new one. The intake pressure sensor was also removed and washed, and there was a lot of oil on it. Just take it out.