Starting issues
Well that's not a lot of information, but I can guarantee you SOMEONE on here has had the same problem. Start with the obvious. Does switching tanks have an effect? If not, the rear tank pumps most likely aren't your problem. Do you hear the primary fuel pump prime when the key is turned forward? If not, you need to check power to that main pump. If you do, then your fuel pressure regulator might be bad. Check the schrader valve on the fuel rail and see if it has pressure.
What happened when it stopped running? Was it parked and just wont start or were you driving it? That would help pinpoint a problem. Also what makes you think its fuel related? What have you already tried?

