RJM harness and a few other EFI Questions(I know AGAIN)

[needabronco]

I'm on the home stretch of my efi finally, and I have a couple of things I'm not sure about. I have the RJM harness, explorer parts, A9P computer, manual for now....

First, the RJM harness has a wire to connect to the alternator to 'turn it on'? I'm still running the stock 71' alternator, what/how do I connect this?

VSS do I really need it? I have one from a 4R70W but not sure if I even need it, as some on here don't seem to use one?

Theres also a connection where I need to choose wether auto or manual transmission. Does this mean what tranny I'm running now or what the computer is for, I think an A9P is for an automatic if I'm not mistaken.

Thanks. I'll post pics tommorow, its been a loong weekend under the bronco.

 

[Viperwolf1]

You should be able to use your existing alt wiring and regulator unless you pulled it out. It's separate from the old engine harness. I can send you a diagram if you need it. Cap the new harness alt. wire until you upgrade. I've also heard that a lot of folks don't use the VSS and don't have issues. You can always try it without. At worst the engine may stall when coming to a stop. After looking at the RJM manual it's not very clear if the trans plug should correspond to the computer or trans. Hopefully someone else will answer this one for you.

 

[Silverhorse]

I'm using the same computer you mentioned. I took it to mean what tranny your running with the conversion.

 

[workforce]

No its means what computer your running not what transmission.