Electrical problem
1996 GMC Sonoma 4 cyl Two Wheel Drive Manual 114000 miles

I was driving to work about a month ago, and while driving, my truck cut off. Since then I have not been able to start it back. Here is what I know:

No check engine light, no codes show with scanner
Engine is getting fuel, but there is no spark at the plugs.
Starter is turning the engine, but again, no spark.
Ignition coils and ignition control module have tested good.
I have replaced the crank sensor - still no go
I have tested all fuses and relays, and also the fusible link coming off the battery and the two coming off the alternator.
All connections I've found are good.
The computer is getting fire, and the grounds are working.
I have swapped the computer out for a used one, since it pointed there, but still no go.

Thanks for the help!