I have a 2003 dodge grand caravan, it turns over but wont start. I know it is firing and i know it has fuel to the engine. any sugestions on my problem.

 

I am assuming firing means you have spark? Is it spark at the wires or plugs? Are you getting fuel to the rail or into the cylinders? If you have spark and fuel in the cylinders the other third of the equation is air/compression.