cant figure out why my car will crank but not start

What is your question?

my car was and had been running what to me was normal and then all of a sudden smelled like it was getting hot, but did not over heat, it didnt even get to the halfway mark, i turned the car off and have not been able to get it to start since. I replaced the timing belt back around christmas, it ran with no problems after that until now, the timing belt was still in place but i changed it to make sure it hadnt slipped, because it sounds like it jumpped time, it has spark to the plugs,and the coil pack, and is getting fuel, what could it