Intermittent engine will not stay running

Sounds just like a fuel pressure issue. More than likely the fuel pump is starting to fail and only creates enough pressure about 50% of the time.

We need to start with checking the pressure not only when the engine starts but we also need to know what the pressure is when the engine fails to start or cuts off.

Here is a guide that will tell you how to check the pressure.

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

I attached the process from the manual on how to do this as well.

Let us know what this is and we can go from there.

Thanks