2001 grand prix starting problem

I have a problem with this car when you shut it off after driving it for a while, it will not start. it just fires once then just rolls over hitting a little but wont start. i can leave it sit and cool down for a good while then it fires right up. it runs great other then that. Could someone help me on this? Thanks

next time it wont start, remove the plug wires at the coil packs, have an assistant crank the motor over, and observe the coil packs. Starps should jump across the two adjacent towers at each coil. If they dont, you need to figure out whats causing you to not have spark.

If you have spark, next step would be to attach a fuel pressure guage and measure fuel pressure. Post your results.