I'd suggest checking your ignition switch and the wires going from it to the distributor, power wires and grounds. Get a shop manual and follow the tests for the ignition system, then if that doesn't work it might be another bad wire in the engine harness somewhere... it seems complicated at first but I took mine out and tested all the wires and where they run to/from, I can send you more info if you'd like, but start with the ign first... also double check the timing belt and timing marks, that is probably not the cause but it's easy enough to check (again see shop manual).