High idle problems

There are a number of things that can cause this but the most likely cause of this is a vacuum leak, so I would suggest we start with this guide and that will get us started on if this is the issue:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

However, if we don't have a vacuum leak then we need to run through this guide on high idle and start crossing these things off the list.

https://www.2carpros.com/articles/engine-idles-too-high

Lastly, we need to check for codes and find out if we have any issues with some sensors.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Once we run through all this info, I am sure we will either find the issue or get on the right path.

Please let me know what questions you have, and we can go from there.

Thanks