Alternator / starter / EFI wiring help

[jimtweet]

converting my 79sc 3.0 to EFI and looking for some verification with wiring.

I just received my new Alternator which is INTERNALLY regulated.

Stock Alternator has
1. Large red / small red wire
2. black wire
3. blue wire
4. 3 brown wires
5. 1 brown wire to engine case

Since this is internally regulated, I am assuming I just leave the Black , Blue, and one brown wire out of harness.

There is only two studs on new Alternator.

I am assuming 3- gets brown wire to engine case and 3+ gets red wires



The starter has three wires

1. Thick yellow
2. thin yellow
3. large red

I believe the thin yellow with blue strip goes to cold start injector?

Thick yellow is to fuel pump relay

can someone please confirm

[timmy2]

Only the black wire DF is not used.
Thin yellow can be deleted.

[jimtweet]

DF? Sorry English please. I am not good with electronic stuff.

I followed the wires from alternator and the black, blue, and brown wire all run into the voltage regulator.

[timmy2]

DF is the designation on the prints for the feed to the voltage regulator.

[timmy2]

You can delete a lot of wiring in the '79 engine harness depending on what EFI system you are installing. Give more details and I can give you guidance as I've built a lot of custom engine harnesses for people.

[timmy2]

I see 3 studs on your alternator. One for reds, one for Blue and one for ground.
PM me your phone number and a time to call and I can talk you through the alternator and the wiring for your engine harness.
(I'm on the west coast for time considerations)