Computer reset?

Hello,

There could be a number of reasons why the engine is not staying on.
Likely not due to the ECM.
This type of issue many times due to a fuel supply issue. Like a malfunction fuel pressure regulator, or a clog in the fuel line. It can also be due to a bad mass airflow sensor or throttle position sensor.

Checking the fuel pressure could be a good place to start.
This vehicle should have 55-62 PSI of fuel pressure, with the key on and engine off.

Here is a helpful guide on how to check the fuel pressure:

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

Is the check engine light illuminated on the dash?
Many times, with starting issues the light can get triggered. If so scanning and retrieving the code(s) can help with the diagnostics.

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

I have attached diagrams for your reference.

Please let me know if you have any questions.
Thank you.