are ecu's interchangeable???

[JLHollowX13]

ok, here is my delima (sp? lol) i found a guy selling a fwd svx for 1k, (actually its 500 cash, 500 in trade) it has problems but would be a great parts car, or even dd if the title gets fixed (there is title problems so if they cant be resolved itll have to go to parts). it is a few hours from me though, and it doesnt have an ecu. my question is, can i use my ecu from my 92 in the 94? i would just need to use it to get it home and thats all. if it wont work, does anyone have a 94 ecu laying around that i could "borrow"? maybe send some $ your way as collatoral, then once it is returned i get a full or partial refund, depending on if you want money for using it. i kind of would rather just borrow one in a way because then i could take my svx to pick it up, but if that doesnt work i want to see if my ecu will work. thanks for any help!