Need Help 2010 Buick LaCrosse

[Quabo]

Hello , I Have an 2010 Buick LaCrosse and it’s giving me some problems. I have 49,000 miles on it. I would be driving and then the check engine light will start flashing and the car will turn off. It barely drives for more then 5 mins would anyone be able to help me out. I tried getting a diagnostic on it and nothing pops up when it scans can someone please help me out ASAP . Thanks

 

[Rich B.]

First idea may be water in fuel, is gas cap completely threaded on?

 

[Quabo]

First idea may be water in fuel, is gas cap completely threaded on?

Yea gas cap is completely on