My car will turn over, but won't start? on 1999 Hyundai Elantra

My check engine light came on 5 days ago, but I assumed it was due to my exhaust. I believe I need my exhaust replaced as it is extremely loud when I drive it. But why won't my car turn over??

2 answers
ck for spark and fuel to start with. i hope you didn't break a timing belt. have you had that replaced already
sounds like its not getting fuel....
could be as simple as a 5 dollar fuel filter