need help 1994 grand prix not starting

i need help with this one guys i change the fuel pump fuel filter did a tune up change the control module and coil packs and it still want start now when i spray starter fluid in the intake in starts up and i can pump the gas about 3 to 5 times and then it shuts off now im getting fuel and spark at the same time but just want start and stay on its a 3.1 engine multi port need help tired of guessing

well this is just a shot in the dark but take a look at the crand shaft postion sensor that might have gone bad

will try thanks

Well if the crank position sensor is not working you would not get spark or really erratic spark. I agree check the crank position sensor