I've replaced fuel filter, mass air, egr valve, throttle sensor, had fuel pumped checked its working, but it won't stay running. It'll run for 10-15 seconds and cut off. I'm running low on funds and time, got to get it fixed by Monday for work! Any help, PLEASE!

 

Do you have a transponder key? If so it could be faulty or the contacts in your ignition switch, this would cause your vehicle to start but imediately stop after a few seconds.