Intermittent issue of shutting off after engine has warmed

More than likely this is a spark or fuel issue. So let's start with fuel because that is the easier one to confirm with an issue like this.

Here is a guide that will help with fuel pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Basically I would just tape the gauge to the windshield and then drive it until it acts up. Then you can monitor what the fuel pressure does.

If the pressure remains steady then we most likely have a spark issue.

We could still have an issue with an air flow sensor or some other sensor but if we have no codes then we most likely have a base engine issue.

Lastly here are a couple guides that will help with this issue and checking codes if you have not done that yet.

https://www.2carpros.com/articles/engine-stalls

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

Please let us know what you find with all this and we can go from there. Thanks