car shuts off on 1996 Cadillac Eldorado

My car starts perfectly fine but after a couple seconds shuts right off. I can restart it easily, but it shuts off every time.

Asked by for the 1996 Cadillac Eldorado
is the security light on?? if it is, then the cylinder for the key may be the issue.

you need a shop to verify.

1 more answer
you have leaking fuel injectors, find them and replace them if not all of them. easy to do but expensive!