Okay, I have done a lot of reading through various forums and I cannot find anything alike enough to my problem to correctly diagnose it. I have both the fsm and the efi bible and have done many of the tests as I will explain.
To start off I have a 77 280z, f54 block, p90a head, totally stock. New ngk plugs and wires, gapped correctly, getting good strong spark. The fuseable links have been upgraded to maxifuses, the fuel pump is wired up to a kill switch. I have a fuel pressure tester T'ed between the fuel filter and the fuel rail to check pressure.
It ran strong and perfect for