stalling and shut off?

This can be caused by a vacuum leak, or the throttle body needs to be serviced. Also, there could be a vacuum line to the IAC motor that has fallen off. Here is a guide to help you find the leak. Please use it when the engine is cold only.

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

This guide can help as well:

https://www.2carpros.com/articles/stall-at-idle

Also, we should run the codes to see what comes up.

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

Please go over these guides and report back.