My Corsa 1.4 16v ecotec will turn over, fire up but wont go?

Hi guys i have a 97 vauxhall corsa 1.4, im having a problem getting it goin, it will turn over and fire up but then dies straight away, i started this morning no problems wat so ever, then went bk to it couple hours later then does not wanna know, the engine management light flashes constantly aswell,can u help???