Cranks but will not start

I was driving to work last week and my car just died like it ran out of gas. So I figured maybe I had some how got some bad gas or something but that was not it. I changed all the spark plugs because I had them lying on my work bench from the last problem I had with my car. Still nothing, so I changed the crank position sensor with no luck. Replaced all the fuses in both fuse boxes. It gets spark so I am going to try the coolant temperature sensor next. Any idea where to go from there?