i have a coulple ideas... some may sound stupid but it wont hurt to try it. one, check to see if your fuel injection fuse is blown. if it is replace it. two, check you air filter and intake, when you step on the gas it opens up your intake, and if your intake or filter are clogged the engine will stall after hitting the throttle. three, either have some one do this for you or you can do it yourself... check your fuel injectors. if they are coroded they wont shoot enought fuel causing it to stall. if they are bad you can clean them with a high pressure air pump or replace them with new ones.. well those r the only things i can think of right now. i would recomend purchasing a hanes book on your corsica and read the trouble shooting. i will check mine and get back to you if i get ne more ideas.
