Why would a 2001 Daewoo Leganza not start if it worked the other day?

Does the engine turn over? If you are getting crank but not catching, it could be the emergency fuel shut off switch. It's located on the passenger side front. When you open the front passenger door look down in the well next to the seat. it's a little black rubber fob. Try pushing that and then try starting it. Hopefully it's that simple. If not need more description of problem.

--- Learning more everyday about Daewoo' than I ever really wanted too!---