'93 Grand Am won't fire!!!!

My son has a '93 Grand Am with a 3.3 engine. He ran it for about an hour and went to start it again and now it won't fire. It's turning over, but no spark. We have checked the fuel pressure and the fuel pump and it's getting fuel. We have changed the ignition module, crankshaft sensor, all spark plugs and wires are good, as well as the coils are registering good voltage. Ready to beat my head off the wall, so any suggestions would be greatly appreciated before we send it off to the junkyard. Thank you!!! :banghead:

Welcome to AF.

Were the vanes on the harmonic balancer in spec. ?
You're suposed to measure them with a special tool....


....it should be 0.025 in (0.635mm) on either side of the interrupter ring.

Have you checked for codes ?
You might have a crank sensor code stored and needing reset. A scan tool would be best but here are the manual instructions if you dont have them.
http://www.automotiveforums.com/vbulletin/showthread.php?t=525205