94 gt startup problem, it wont stay crunk =/ Options

[DavezXTC]

Okay so my celica has been basically parked for a year or so, mostly because of a startup issue. pretty much, it spins over fine, and starts up quickly, but as soon as it starts up, 1 second later it dies, if you try to spin it over after that you get nothing. The engine turns over but it makes no effort to fire up. However, if you turn the key back into the off position, then back into start, it will repeat the same thing, instant fire up and then dies. This happened a few times off and on before we parked it also, but it seemed like if you let it sit for a few minutes and tried it again it would run just fine. i'm already ordering a new ECU for it, but i was wondering if anyone else experienced the same problem or had suggestions?

It had sat for months with this problem, then one day i decided to try to move it a few weeks ago, it fired up fine and ran for 30 minutes with no problems, tried it again today, and same start-up and die problem.

p.s., fuel pressure is fine, spark is fine, this is a basically stock 5sfe motor.