I don't know about others but when the new "rebuilt?" World Products Opti the mechanic installed in my '93 went bad after only 10K miles it acted exactly like that.
It would start right up dead cold but after warming up would start crapping out and eventually die, after a cool off it would start again.
One day it just wouldn't re-start at all.
Unfortunately the car wasn't a daily driver and the warranty was up despite the low mileage, I bought another low cost Opti online and then sold the car.

 

I have an otc scanner that will tell me everything but I just don't know what to look for. The O2's have very low mileage on them and from what I was told if you unhook the maf it won't read them and stay in closed loop. Still acts up that was as well and throws and ses light and kicks the fans on with the maf unhooked

 

I just put this msd distributor in because the car was acting the same way with the old one so I assumed it was the opti. $500 later car still does it. I went with msd since they converted to vented style. I thought it would be more reliable. Starting to wonder if it's junk too.

 

did you lock tight the rotor screws?

 

ses light,,, whats the trouble codes?

 

The ses light only comes on when I unhook the maf to keep it in closed loop. And no I didn't lock tight the rotor I just put the distributor on. But that's not the issue since I just put it on and it hasn't ran right since I put it on.

 

look for what temp the computer is seeing. may have a short in wiring

 

Put the hypertech coil on and as soon as the car started it was missing and stumbling and running rich as hell. No clue what to do now. Could the ecm be bad and causing the issues?

 

yes it can. i get the feeling your going to be better off getting to a good shop with a tech 2 scanner.

 

It seems like different days it runs different. When I changed the coil it was warm and raining. When I started it it ran like poop from the time I started it. Later in a cooler dryer day is started and ran better for a little. Something with temp or moisture is changing it.