I have a 94 del sol with a b18C1 swap, my car sat out for 2 months with me starting it like every week or so, then randomely one day it wouldn't start. I tried jumping it, for about 45 minutes, nothing. It was just dead, no turning over, no click nothing.
So I let my car charge over night, and tested it in the morning and it was good, and my car still wouldn't start. I noticed when I turn the key, my deck dies and restarts, and I have full power, lights / dash / windows. Had my battery and starter checked out, and both are fine, we thought it might be an ignition problem so we replaced the ignition switch. The problem still exists.
And it seems to happen at random, after I replaced the ignition switch, I went to work, it started up fine that morning, at my 5/8/10 breaks and after work. Then the next morning it wouldn't start. The only way to start it when it acts up is by push starting it. This problem is getting incredibly frusterating and any and all help is much appreciated.

 

The first thing you need to do is redo the main grounds,[ batt. to chassis and chassis to engine] DO NOT just eyeball them, disconnect them, clean the contact surfaces, reconnect them, even if they are not the problem, it is the best way to elliminate them as the possible problem, and it can't hurt to redo the main grounds on a 19 year old car.

If that does not solve the problem, try a bypass jump and starter circuit test the next time it fails to start...
https://honda-tech.com/forums/showth...cm+bypass+jump 94

 

The biggest problem was, whenever it wouldn't start, I didn't really have time to look at it lol, then it would start later. Took it to a buddys and it wouldnt start when I tried to leave and he found, a wire from my ignition to my starter routed thru my dash, had power before my dash, but not after going to the starter. So we replaced and rerouted that, and I haven't had a problem in 3 days, so I have my fingers crossed.