Can anyone help?!?!?!?!

I am working on my grandmas it is a 1990 buick century and it will start and run kinda rough but run and as soon as a give it some gas it dies so i checked the plugs made sure i was getting good spark and that all cylinders were firing checked fuel pump pressure checked to make sure the pump stayed running once i start the engine and made sure that engine was getting air. so far i havnt found the problem i tryed spraying some starter fluid into the intake and it started and ran smooth for a little but but the fuel pressure is right where it should be so im stumped. if any one has any ideas please let me know i need all the help i can get

I am working on my grandmas it is a 1990 buick century and it will start and run kinda rough but run and as soon as a give it some gas it dies so i checked the plugs made sure i was getting good spark and that all cylinders were firing checked fuel pump pressure checked to make sure the pump stayed running once i start the engine and made sure that engine was getting air. so far i havnt found the problem i tryed spraying some starter fluid into the intake and it started and ran smooth for a little but but the fuel pressure is right where it should be so im stumped. if any one has any ideas please let me know i need all the help i can get

Check the fuel injectors and the fuel rail. If the fuel injectors or fuel rail are clogged/dirty then the moment you step on the gas pedal the car will get more air than fuel and die.:eek7: