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Old 03-14-2016   #1
spork2367
 
Join Date: Jun 2013
Location: PA
Posts: 879
Default Wiring harness part identification

Just bought this restomod harness from lgaff. Trying to identify this box. Has three small gauge wires coming out.
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Old 03-14-2016   #2
65ZR1
 
Join Date: May 2006
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Default Re: Wiring harness part identification

I would guess it's the defeat for the resistor pellet in the key. Quite a few conversion harnesses came with a similar box. Could tell for sure by tracing the wires back to the Ecm connector. Wish this harness was available when I started my project!
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Old 03-14-2016   #3
WVZR-1
 
Join Date: Oct 2004
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Default Re: Wiring harness part identification

In his "for sale" the image seems to show it "connected" so you would follow those wires to the appropriate pin of the ECM and ID those pins. I wouldn't think it that difficult.

The wires needed to be terminated somewhere in the harness, I doubt it was just a supplied "loose part".
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Old 03-14-2016   #4
spork2367
 
Join Date: Jun 2013
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Default Re: Wiring harness part identification

Quote:
Originally Posted by WVZR-1 View Post
In his "for sale" the image seems to show it "connected" so you would follow those wires to the appropriate pin of the ECM and ID those pins. I wouldn't think it that difficult.

The wires needed to be terminated somewhere in the harness, I doubt it was just a supplied "loose part".
Not that difficult if I want to cut all the heat shrink and wrap off the harness. Which I may have to do, but I figured I'd ask first.
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Old 03-14-2016   #5
LGAFF
 
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Default Re: Wiring harness part identification

I would see if its for the gauges first
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1987 Callaway TT #17
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Old 03-14-2016   #6
spork2367
 
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Default Re: Wiring harness part identification

Looks like B10 ignition feed, D7 VATS, and a ground.

Last edited by spork2367; 03-14-2016 at 10:52 PM.
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Old 03-15-2016   #7
WVZR-1
 
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Default Re: Wiring harness part identification

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Originally Posted by spork2367 View Post
Looks like B10 ignition feed, D7 VATS, and a ground.
D7 I'd think more appropriately determined to be FUEL ENABLE - but it seems to interpret the "unknown device's" function or maybe "intended function" and the B10 is actually in OE from the ECM fuse I believe. That doesn't seem to have taken very long and I doubt difficult.

Last edited by WVZR-1; 03-15-2016 at 07:46 PM.
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Old 03-16-2016   #8
spork2367
 
Join Date: Jun 2013
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Default Re: Wiring harness part identification

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Originally Posted by WVZR-1 View Post
D7 I'd think more appropriately determined to be FUEL ENABLE - but it seems to interpret the "unknown device's" function or maybe "intended function" and the B10 is actually in OE from the ECM fuse I believe. That doesn't seem to have taken very long and I doubt difficult.
Yeah, I cut back about 12 inches of the heat shrink on the harness.
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Old 03-16-2016   #9
65ZR1
 
Join Date: May 2006
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Default Re: Wiring harness part identification

Quote:
Originally Posted by spork2367 View Post
Looks like B10 ignition feed, D7 VATS, and a ground.
This would confirm that it's purpose is to defeat the resistor pellet in the ignition key. Also known as VATs.
What's is your plan for the harness?
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Old 03-16-2016   #10
spork2367
 
Join Date: Jun 2013
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Default Re: Wiring harness part identification

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Originally Posted by 65ZR1 View Post
This would confirm that it's purpose is to defeat the resistor pellet in the ignition key. Also known as VATs.
What's is your plan for the harness?
Going on a 1991 engine I'm rebuilding now. Not sure what I'm going to put it in yet.
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