[89 crew]

I read your book. What I see from your description is something is overheating. My only question is which comes first? you are getting no signal to the fuel pump relay, but a ecm will shut down the fuel system if it isn't sensing fire from the ignition system. If I was working on it I would start with the distributer, and coil. test them and make sure they work properly. also check for corrosion on the contacts. corrosion causes resistance and so does heat. When you reassemble put dielectric grease on module connections and coil connections. after that is done take it for a drive. If it screws up, let it cool down, and try it again. If I'm right about a temp issue it will refire when it cools down. The bad news is if the distributer doesn't fix it I'm gonna bet the pump is overheating and shutting down. Have you checked the fuel filter? if it is mostly plugged it can cause the pump to work too hard and over heat.