I have a 2000 hyundai tiburon, the problem that I have with this car is that the car will run fine for several days even weeks then at any given point it will not crank. It is turning over but just not starting, I have replaced the plugs and wires, and the crank position sensor. Do you have any ideas of what the problem might be?

Optional Information:
2000 Hyundai tiburon 2.0 liter dohc

Already Tried:
replacing plugs wires and crank position sensor