gran am won't start for nothing

i have a 93 Grand Am that won't start. It has a 2.3 dohc eng. i have replaced the crankshaft sensor checked the map sensor the Ing. Mod. and coil packs spark plugs and O2 sensor. The engine is getting gas. The car do not have none of that secrutity key crap thank god. I had a 89 caverlier with the same problem once couldn't fix it either so i junk it. I refuse to do that again. Please help me!!!!!!!!!!

Start by having the code read.

Are you sure that you are getting sparks?
Does the injector open? does the cylinders get gas?
Does it even try to crank?
Is the gas old?
Have you checked the fuel pressure?