O2 sensor wire routing with LT's
 

I just installed a pair of 1-3/4" Kooks LT's with the O2 sensor bungs facing the tranny. I was wondering how you guys routed the wires for the front O2 sensors. Pictures would be helpful.

Thanks,
Chris

You buy some o2 extensions?

Yeah, I probably should have included that.:bang: I have the ones that came with the headers; I believe they are 24".

Chris

In the past 1 install and one harness repair for a Buddy. I extend the complete wire harness. Ie Rt front O2, Crank position, oil level and starter solenoid. And routed to the upper back corner of the firewall and then back and down the side of the bell housing. Never a chance of any damage after that.
If you decide to go this route I would highly recommend soldering the joints vs splices. And use a good heat shrink tubing over your joints for a trouble free repair.

Even with O2 extensions I did not like how close that wire loom it to the headers only asking for problems after time. For the other wires and sensors

I did it this way. Soldered joints and used shrink wrap and then I covered the wires with high temp. tape from summit racing equipment. No way the wires will burn now.

Its the only way!!!!
Why GM routed them there make no sense. Even without headers, its only a matter of time. They must have known there was going to be problems or they would have not wrapped them as well.

How does everyone do it with just extensions then?

Even with the extension, the wires are still going to be in between the frame rails and the headers. The extension just gives you the added length to reach to 02 sensor due to it's placement. But the other wires in that harness should be lengthened or at least covered with some VERY good heat wrap for some type of protection. I know on mine even if I were to wrap the harness there still would have been contact with the header.

I don't have any problems with contact between the harness and the header. I have at least a good inch and a half of space between them, plus the harness is already wrapped in heat tape, so I don't think that will be much of a problem. My main concern is just the actual routing of the extensions to the front O2 sensor bungs. I'm looking for the best way to go about that so the extension wires don't risk coming into contact with the headers. Thanks for your help though.

Chris

I bought 2 new O2 sensors, Bosch #13111.
They have really long wires, so no extensions needed.

This pic shows pretty much how I routed them...

http://www.camarohighway.com/Files/M...s/IMG_0892.jpg

Drivers side O2 wire is looped behind the heat sheild, and I also used a bracket formerly located in the engine bay (removed when I installed fuel rail covers)to hold the wire.

Closeups:

http://www.camarohighway.com/Files/M...s/IMG_0797.jpg

http://www.camarohighway.com/Files/M...s/IMG_0801.jpg

http://www.camarohighway.com/Files/M...s/IMG_0803.jpg

Passenger side is just tied to the lines right there.

Closeups:
http://www.camarohighway.com/Files/M...s/IMG_0794.jpg

http://www.camarohighway.com/Files/M...s/IMG_0793.jpg

http://www.camarohighway.com/Files/M...s/IMG_0792.jpg

Hope this helps! :)

OctaneZ28, thanks for the reply! That does help me out, although it sucks I don't have the tranny cooler lines to run the wire along. What is it that's holding the wire next to the oil filter in the third picture?

Chris

why not? those are factory lines and i have them. you should too...

I have an M6. :)

The bracket by the oil filter there used to be in the engine bay.
It holds a couple fuel lines in the engine bay.
I removed it because it's in the way to put fuel rail covers on.

There just happens to be a place to bolt that bracket on the block right there by the oil filter, so I used it there and it worked out pretty good. :)