need to get to work neon shutting off!

please help. my car will start and run, ill rev it for a few to warm and out of no where it shuts off. then cant start. i can the hear fuel pump, batt is new and lights are on so thats fine, starter worked when first turned it over, dosent matter oncw started any way. grounds are all new wire i did. plugs wires are fine. so i thought mabe coil. cause i have starter, fuel prime, good batt. so i buy coil, still nothing!!!!! im so stumpped. is it egr or o2 sensor???? p.s. cam, crank sensor is new

Maybe the in wire, fusible link from the alternator is blown. Your car would start and run on battery power until the battery drained and then the engine will quit. Recharging the battery will let it start and run again until drained and quits

back again, still doing it.i found out that for a spark issue it is slimed down to the coil, ign module and the computer. my ign module is built into the cars pc so that is debunked, the coil is new and still does it with old one. no spark in any wire once it fails. sooooooooo that leaves the pc. i got a pc off a buddy at a1 auto and swaped them, let it sit all day, tryed to reset all that, still wont stay running, lost my job over this. please help with ant more ideas

oh and if it were the alt, the power supply would not let the starter turn over and over, and i know its now the alt because its so quick to shut off when it fails and its just a ign problem nothing more than no spark

typo NOT

Familyman720, so you are sure it is a no spark situation, it cranks over but will not start. Have you checked for spark at the plugs? Made absolutely sure it is getting fuel and the fuel pressure is good? You have about covered everything ignition wise. Check engine light on? Does your car have an ASD relay? Which means automatic shut down, your computer uses this relay to shut down your engine when it senses a problem somewhere. Check for power leading up to the coil. Possibly an ignition switch also. Hope this helps.

thanks james for input but yes it is a before the wires ign fail. auto shutd was swapped around with diff relays and did not help, crank cam good 2 computers two coils so its been at the shop for 3 days now and they did everything i did so now there looking at a wiring schematic for failing wires. got the whole shop stumped. i will post the problem when it is solved. so who ever has to deal with this they will know.

It could be the alternator, or a wire or wires leading to the alternator. Try having your alternator tested, if the car is starting up, then conking out, it sounds like somehow the power supply isn't fully getting to your battery (although some must be getting there if the car is starting sometimes). Definitely get the alternator checked, if it is good it could very well be the wires, best of luck to you :-)