JonoLainez

I have a 2015 Silverado with the code P12A6. I have had the ECM changed the fuel module changed and the fuel pump changed even have had a ground rewired. All just to land on the truck leaving me stranded which is weird because in the morning it works just fine on the way home from work is when it turns off on me. I cannot find any resolutions to this problem has anyone figured this out? This is the weirdest code I have ever seen and when it leaves me stranded i can wait a little bit and then it cranks back up just enough for me to be able to pull it over to the side so i can leave it for a couple hours and come back to get it to take it home.