Wiring harness part identification - ZR-1 Net Registry Forums

spork2367 · 03-14-2016

Just bought this restomod harness from lgaff. Trying to identify this box. Has three small gauge wires coming out.

65ZR1 · 03-14-2016

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!

WVZR-1 · 03-14-2016

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".

spork2367 · 03-14-2016

Quote:

Originally Posted by WVZR-1

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.

LGAFF · 03-14-2016

I would see if its for the gauges first

spork2367 · 03-14-2016

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

WVZR-1 · 03-15-2016

Quote:

Originally Posted by spork2367

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.

spork2367 · 03-16-2016

Quote:

Originally Posted by WVZR-1

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.

65ZR1 · 03-16-2016

Quote:

Originally Posted by spork2367

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?

spork2367 · 03-16-2016

Quote:

Originally Posted by 65ZR1

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.

03-14-2016	#2
65ZR1 Join Date: May 2006 Location: Canada Posts: 139	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!

03-14-2016	#3
WVZR-1 Join Date: Oct 2004 Posts: 1,890	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".

03-14-2016	#5
LGAFF Join Date: Mar 2007 Location: Crystal Lake, IL Posts: 7,194	Re: Wiring harness part identification I would see if its for the gauges first __________________ LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359

03-14-2016	#6
spork2367 Join Date: Jun 2013 Location: PA Posts: 879	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.