efi/fuel problem?need help

i have a 1984 celica gt with a 22-re engine. i was driving the car and it started to shuder and shake and then died. the engine turns over but wont catch.now heres the weird part, if i left it alone for a couple days and then tried to start it it would run for a few seconds and then die. so i thought it was the fuel pump. i had it towed to my house and now that its here sometimes it will start and run fine (ran it for half an hour) and sometimes it wont start at all. any help would be really cool.

listen for the fuel pump when you turn the car on. ideally have someone else turn the car on while you have your ear or maybe a stethiscope (if you can get 1) by the tank. you checked for a spark?--but id bet its the fuel pump..pretty ez fix if its that

im pretty sure its not the fuel pump unless its a lose wire that i cant find. some times the car will start and run fine for quit a while sometimes it wont start

im pretty sure its not the fuel pump unless its a lose wire that i cant find. some times the car will start and run fine for quit a while sometimes it wont start


run fine for how long? until it gets warm/hot? nothing to do w/ temp--just totally random? you showing any codes?

it might be a burnt wire, blown[partial] fuse, it drives around moving then shorts agen

just a possible answer

when it does run it runs like nothing was ever wrong ive checked all the fuses and relays. also ive been told that i dont have on board diagnostic capability if thats what you mean by codes. as far as i can tell it is random thanks for the ideas

Heat soak?