Well, what you have to do first is find out if it's not getting spark, or not getting fuel. Or both. Then, find out if the fuel pump is even coming on. It could be anything from a poor ground to something not being hooked up. If you can, it would be good to just get a carb setup goin on the engine, forget the electronics. Also, if it's a 96, it's most likely OBD-II. And if both o2 sensors aren't in place, it won't start.