Harness wire?

[iceorphen]

I've got a loose/frayed wire on my engine harness right at the front injectors. Any idea what this wire does, or is supposed to do.

All 6 of my injectors are working fine.
http://img15.imageshack.us/img15/8407/imag0120mu.jpg
http://img34.imageshack.us/img34/2531/imag0121u.jpg
http://img823.imageshack.us/img823/1117/imag0122rr.jpg
http://img12.imageshack.us/img12/8035/imag0123zn.jpg

thanks in advance

[mb3000]

IIRC that is the rear o2 connector.

[iceorphen]

I'm not throWing a cel, any ideas how to proceed? Do I need rear o2?

[dfoster101]

not to thread jack but yeh, do you need a rear o2? ive been curious about this cause the person that owned the car before me cut the wires from the rear o2 but im not throwing a cel though not sure why they would do such a thing but im planning on replacing it with a fresh new o2 sensor when it gets outta the shop. but i have been curious if you need one if i dont i guess ill save myself a 100 bucks

[dpartinvr4]

is there a wideband in it's place? my PLX Wideband has a narrowband "out" option so I can run a wideband in the narrowband bung, and run a wire from the "brain box" to the ecu so it doesn't trip the CEL

[iceorphen]

Well when i was under the car 2 weeks ago, i saw that my rear cats were gutted, I could see the o2 from below. Whether or not its wired is a different story.