After the Elantra throttle is cleaned, the oil speed is high and the refueling is normal. What's going on here? When idling, the speed is about 1500, and the courage is normal.

It depends on the initial normal idle speed, which is the idle speed set by the manufacturer. The current level is caused by hardware, which is what you said. It may be that the initial opening of the throttle valve increases, and the idle valve can no longer be closed to reduce air intake. Generally speaking, the idle speed of 800 is normal.

Cleaning the throttle is not recommended for beginners. This is quite complicated and easy to make mistakes. Find a repair shop or 4S shop, it doesn't need to be cleaned frequently. If you feel the throttle is stuck, clean it.