My 93 dodge stealth R/T DOHC non turbo wont stay running. I have a toggle switch for the fuel pump ran inside the car. I can flip the switch on for a minute and let it build pressure. Then it starts right away. But then it dies. As if the fuel just gets cut off or something. The car has this weird security system in it. VPS or Vehicle Protection Systems. It is hooked up to some wires below the dash over by the fuse box. Then it has a wire run to this input thing under the dash. (You can see it while sitting in the car, its not hidden) It has a little thing that you stick into it. The part it self flashes red. Until i stick the key into it. The car wont start without it in there. its all connected to this VPS thing. And when it does start. It will idle for about 5 to 10 seconds and then the car will completely die on me. I put in a used fuel pump and sending unit that works. I tested it before i put it in. I also took off the fuel line where it plugs into the fuel rail. The fuel is getting to it great. Some people are saying that i need an upgraded fuel pump. Or my fuel pressure regulator is shot.
Im not sure if this has something to do with the cars computer. Which i think something is going out. I used to be able to flip up my lights when the car was completly off. The door used to ding. Dome lights used to come on. Cant get my CDs out of the CD changer in the back. The stereo has no memory when i turn the car off for 10 seconds then turn it back on. Its reset again...

I dont know what to do??....