I have an early 260z and I just swapped the alt for a zx one and wired it all in. I followed the instructions for the 240 and now when I turn the ignition to on my fuel pump runs and clicks. What do I need to do on the 260 to wire this alt correctly. I have been searching forever and everyone says the info is out there, but nobody posts it. Please help!

more info, please! If the wiring is exactly the same, there shouldn't be a problem. By not saying the wiring was different, we can't say much...was it the same as a 240? I did the conversion on my 240 and it was very easy--is the installation on your 260 the same?

My voltage regulator plug was round not a rectangle, but it seems to contain the same # of wires and color. I cut the plug off and connected the white w/blck stripe wire to the black w/ white stripe wire using the diode and then I connected the solid white to the solid yellow. The only wire left is a solid black. The solid black must have to connect to something to allow the elec fuel pump to turn on only while the engine is running. Right now the fuel pump turns on as soon as the ignition is in the on position. Any ideas?

My voltage regulator plug was round not a rectangle, but it seems to contain the same # of wires and color. I cut the plug off and connected the white w/blck stripe wire to the black w/ white stripe wire using the diode and then I connected the solid white to the solid yellow. The only wire left is a solid black. The solid black must have to connect to something to allow the elec fuel pump to turn on only while the engine is running. Right now the fuel pump turns on as soon as the ignition is in the on position. Any ideas?

Troyz on my 260z my fuel pump at the fuel tank has been removed and the fuel lines spliced and it runs fine. I would think that you should disconnect the fuel electric fuel pump just for the fact if you get into a accident the pump does not keep running. Just my 2 cents.

Not a bad idea, but I would much rather keep the pump operational and figure out how to wire the thing right. Can anyone out there tell me if there is a great advantage of running both elec pump and mechanical or if I would see a big difference if I disconnected the elec fuel pump? Thank you guys for all your input, I've only had my z for about 6 months and you've been tons of help.

which directions did you use?

I got the info from this site mostly.