I own a 1991 honda civic hatchback.. I bought it not to long ago and it has a problem starting. It starts up some times and other times it doesn't. Now I check the distriutor with this light that plugs into the spark plugs, I also cecked the fuel pump, and I got a whole new main relay for the car and that didn't help. Now I was wondering what I could do to test the fuel pump pressure and maybe there is something else I need to test or replace and I was hoping maybe someone knew and could help me out.

I got the same problem 92 civic dx check spark plug change fuel pum because a lot of money I thinkg may be the ecu it self that sucker locat at the passenger right foot.

Perform tests, in Sections A and B, below:

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