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Holley efi injector harness wire color

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Old 06-24-2017, 04:22 AM
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Default Holley efi injector harness wire color

Can somebody please tell me the wire color on each cylinder for a Holley ls injector harness as my tags fell off during engine swap thanks
Old 06-24-2017, 07:37 PM
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you figure it out?

I have this kit sitting out in the garage. PART# 558-502
Old 06-25-2017, 04:45 PM
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That info is in the manual. You can d/l it from the Holley site.
Plug id, pin #, color, wire size.
Old 06-29-2017, 02:20 PM
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Originally Posted by waterbug1999
you figure it out?

I have this kit sitting out in the garage. PART# 558-502


could you post the info if you have a moment? thank you!
Old 06-29-2017, 09:19 PM
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ok.. ill post it in the morning.
Old 07-15-2017, 04:18 PM
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Originally Posted by waterbug1999
ok.. ill post it in the morning.
Read the wiring diagram on Holleys info and it confused me more. I know it's simple to some people bit a simple Lsx colour from the harness from the time it left the box before noobs like myself ripped the stickers off is.....

Cyl1 = this colour
Cyl2=this colour....

The schematic in Holleys tech support has colours listed that I don't have and my harness has colours the Holley instructions don't have.
Old 07-15-2017, 04:29 PM
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Call Holley and talk to a tech person; they might help you through this.
Old 07-15-2017, 04:41 PM
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Originally Posted by G Atsma
Call Holley and talk to a tech person; they might help you through this.
closed for the weekend and I want to sleep from now till Monday.. Lol

What I have now

1-black
2purple
3-white(ish)
4-grey
5-yellow
6-green
7-purple
8-orange.

Confusing right...
Old 07-15-2017, 05:34 PM
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LOL- Aw man, where's your sense of total commitment??? Oh well, they ARE closed.... lol
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Old 07-17-2017, 03:05 PM
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Originally Posted by G Atsma
LOL- Aw man, where's your sense of total commitment??? Oh well, they ARE closed.... lol

Update. Holley tech helped out bit not just telling me to look online but spoon feeding me the easy way. So here's the colour scheme for ls1 Holley injector harness for all those looking.
1-black
3-blue
5-grey
7-green
2-yellow
4-brown
6-purple
8-orange.

Done. Hope this helps someone!
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Old 07-17-2017, 03:33 PM
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NICE! Glad you got the help you need, man!
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