Intermittent starting 1991

[Foxyshazzam]

So I had thought it might've had something to do with the cold but it looks like I was wrong.
I've replaced most fuses, fuel pump, dist cap+ rotor, spark plugs & wires, and main relay.
It won't start for days on end then suddenly start and run great for a few days.
When I parked the car last time, I started it a few more times to make sure it was in working order and it was great. The next day it won't start and has no spark(at the plugs, i don't know how to check for spark further back) once again. I'm not very car savy so everything i've done has been with the help of youtube or mechanic friends, I don't know where to go from here. Any help is appreciated.

 

[NemesisCBR]

Youve left out details such as whether it cranks or not when you have trouble starting. Starting the car is a process and specifics to what is and isnt happening can point to different things. Have you considered that the starter is on its way out?

 

[BrokenTalon27]

Check the starter signal wire. I had a problem in mine.
I also did a push button as a back up. Just in case.

 

[djzachtyler]

what ^^^ said... also check all your grounds they can cause this issue.
Negative battery clamp should be good and tight... a worn out clamp can cause this.

if you are able to rule all of those out you may have a failing distributor.