I am trying to find a source for the lower wire in the picture. I think it is an 2/18 copper braid shielded wire. Any clues? The only place I found something like it will only sell it in 100ft lengths.

http://www.awcwire.com/part.aspx?partname=stj-18/2

The location I need this for is the harness that runs from the passenger footwell ECU to the 2 front ignition amplifiers.

It's an extremely complex harness which looks like it has seen several attempts by the PO to fix.

Any advice you might provide is sincerely appreciated.

 

I bought replacement from a place called Harleys Electronics Inc. in Spartanburg SC. They sold it by the foot. I bought enough to replace every coax in my harness for about 40.00

 

will this work?
http://www.waytekwire.com/item/ST18-...AY-PVC-JACKET/

That STJ stuff is made for 400 plus degrees and is over 3 bucks a foot

 

According to the specs, its good for up to 176 degree f. I can only imagine that oil temp on these cars is over 300. I have read articles that say the oil temps are part of the heat problem with the V12s. The heat from the oil, adds to the heat of the coolant. I would imagine that with the hood closed, idling in hot traffic, one might see over 250 degree F. So, I would be a little cautious on a wire rated to 176.