94 yukon ran bad, then quit, now won't start at all

[98_k1500]

It just got a whole complete distributor, pick up coil, and ignition module and it did not fix it. That was installed last friday. I have seen one with a bad pickup coil lose injector pulse too. Im just lost on it, the computer is about the only thing that has not been replaced. We are trying to scrape up a fuel pressure gauge for it and get some data on that, these TBI motors are such a pain to check it on tho. Do they make a noid light for these TBI engines?

 

[98_k1500]

The whole distributor, pickup coil, and ignition module hads been changed. We pulled the computer out of another truck and put in it and it ran fine for about 15 minutes and then quit. Coil was not firing. Put (yet another) new coil on it, the old computer back in it, and it runs like a champ. I guess maybe it was a combination of the computer not making connection on one of the pins, and a bad coil. It runs like its new now.