99 Grand Am will not Start

Good Fuel Pressure, no bleed down. Good spark, no start. When I open the throttle half way it tries to start.... Ideas??

ok, so you have spark and presure
-Check ECT for being shifted in value (compare resistance to temp readings you can find the table here on forum somewhere)
- check the throttle body inlet screen for foreign objects or damage that can affect MAF sensor reading.
- check IAC - maybe it is dirty and not extending and retracting the way it should
- Remove the EGR and check that the pintle inside is not stuck in open position

All good ideas...I will check them as well as putting a Noid light on an injector plug or two and seeing if they are pulsing....Thanks