1992 Accord EX won't start, I change the main relay and still I don't have spark to coil. Also replace computer to no relief and distributor.

Reading Sections A and B, associated with the link below, should help you identify the problem:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-honda-civics-46563.html

These sections are applicable to Accords, except for things like resistance checks on coils. Those values are likely different.