So, you have confirmed that you have spark, and you have confirmed that you have fuel. Hmmm... you didn't mess with any of the wiring? Have you tried to scan it real quick to see if any codes pop up? I did a rebuild recently and even though my car didn't start (it just cranked) it threw codes. If you want to try it, then it is worth a shot.
1) Put key in ignition
2) Turn key to On (but NOT start)
3) Flip back to off
4) Turn it ON 3 times and OFF twice in 5 seconds like this:
On--Off--On--Off--On (and then leave it on)
If you did it right then codes starting with the letter P will display in the odometer window on the dash. If you just get the normal 111111,222222, etc, then try again until you either get a code, a ---, or a "done". Write down all codes and post them
Worth a shot