I am trying to resurrect a 75 280Z that has been sitting for several years. Traced wiring, replaced coil, tested wiring, following Chilton manual. It will run on carb cleaner. With a hot wire connected to the fuel pump I have fuel to the injectors. I tried a noid light and found no injector trip. Computer bad?

first off: Download the Factory service Manual. The Chilton's Manual had very limited info on the EFI system. Quick guess: try to track down the fuel cutoff for youre 75 I think it is different then my 77 (located in the AFM).

Have you checked for a blown fuse or if the connections are clean? Check the connectivity of the connection to the computer?

Thanks for the suggestions guys. Ordered the manual from the store on here last week, as soon as it comes I will get after it.

Here is a link to the downloadable FSM for your car:

http://www.xenons30.com/reference.html

All the info is here for troubleshooting your issue.