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#679798 - 26/02/13 07:04 PM What are these wires?!
A.Burke Offline
Junior Member

Registered: 26/02/13
Posts: 2
Today my 2002 xterra (not supercharged) was running rough and the check engine light came on. I realized a spark plug wire was split in 2 pieces and while replacing the wires I found these wires that were exposed. This is right where the wire was split so I figured it is the culprit of the spark plug wire. My question is what do the wires operate? Should I be worried about this enough to replace it? I dont want the wires to short out and fry the computer, which I had happen in a jeep a few years ago. Any help will be greatly appreciated.

http://s1336.beta.photobucket.com/user/burkead/media/031_zpsc9ae9383.jpg.html

http://s1336.beta.photobucket.com/user/burkead/media/030_zps004a8b44.jpg.html

http://s1336.beta.photobucket.com/user/burkead/media/029_zps5377374b.jpg.html

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#679800 - 27/02/13 11:46 AM Re: What are these wires?! [Re: A.Burke]
e207 Offline
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Registered: 28/06/09
Posts: 549
Loc: Ashland, PA U.S.A.
not sure exactly what they might be for, but I would think you would have noticed something not working or a problem from them being broken like that. Either way, I would think its well worth the time and effort to fix them a.s.a.p.

I'm sure it can be tracked down as to what they are for exactly, or someone on here may already know firsthand, but again either way, I wouldnt put it off.
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#679804 - 28/02/13 07:16 PM Re: What are these wires?! [Re: e207]
paddlerborn Offline
Member

Registered: 01/07/09
Posts: 55
Looks suspiciously like a knock sensor re-location. Those wires may be the ones from the knock sensor that went bad down on the block, and the owner did, (or maybe just cut the wires), the knock sensor re-location. Hard to tell from the photos.
People say the non-supercharged does not need a knock sensor...I'm not convinced.

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#679881 - 16/03/13 01:32 AM Re: What are these wires?! [Re: paddlerborn]
konglo Offline
Member

Registered: 15/03/13
Posts: 15
People say the non-supercharged does not need a knock sensor...I'm not convinced.
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#679998 - 10/04/13 07:25 PM Re: What are these wires?! [Re: konglo]
Nissan_MasterTech Offline
Member
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Registered: 28/08/02
Posts: 251
Loc: Florida
It looks like the sub-harness for the fuel injectors.

Match the wire colors up and splice them back together.

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