My friends CRX just got a B16A1 swap done but is having a problem that once it warms up after you first start it. If you shut it off, it will not start up again. Anyone see this before?

 

Is the fuel pump turning on when you put the key to the acc position?
Sometimes after a long freeway trip if I turn my car off and try to start it right away it wont start until after a few cranks or letting it sit for a minute or two. My fuel pump, main relay, ign switch, and starter are all new so I m guessing its some sort of connection problem that i haven't been able to find yet.

 

Yeah fuel pump is working. The main power relay has been replaced too

 

cranking but not starting is either spark or fuel, since there should be plenty of fuel in the lines up to the injectors if you just ran the car then i'm saying check those spark plugs.
I had a problem once with the dizzy. The igniter unit in the dizzy would get hot and not want to work.. took it out and scraped it for connectiivity and it worked