Check engine soon light and check gas cap light turn on?

The check engine light will come on if the gas cap is bad or not on correctly. To be sure lets run the codes this guide can help:

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

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.