92 D21 cranks, just doesn't want to start

Helping a friend with his 92 D21. He said that when it rains it has a hard time starting. Then a week ago while driving it just went dead! So he towed it home and a couple of days later changed out the cap and rotor (thinking this was the problem)? And it still doesn't want to start.

So he calls me. I go by to check it out and find that it cranks over and will not start! So I check spark and there's good spark and no start. Check fuel and fuel pump comes on and pressure is good and still no start. Spray carb cleaner in intake and no start. Spray starting fluid down intake and still no start.

So I pulled #1 plug out and check for cylinder position TDC and rotor and checks out good. And yet cranks with no luck of starting! Checked computer and everything is dry, tho I wonder if it the computer could be bad?

Anyone's help is appreciated and thank you in advance.

Ahui hou gotta go, Aloha Shane