You don't seem to be getting much help, so here is my 2 cents worth. Get an OBD reader, even a cheap one might give you some indications of what is going on. Try starter fluid in the intake (remove the air filter for access?). Pull a spark plug to see if you have a spark. Engines still run on 2 things, fuel and spark... plus the will of the electronics gods... which depends on a few thousand other things.
