Where are guys routing their wideband sensor cable on these cars? I tried looking for a couple of unused rubber plugs in the firewall but haven't come across any yet. There's a rather large wiring harness that comes through the center of the firewall, but I'm not sure that either the cable's plug would fit or that I would be able to get access to it under the dash once I poke it through.

Thanks in advance for the tips!

 

I have my wires running through the drivers side fender...right by the hood hinge, u can snake ur wires through the fender, out by the door...and route them to the side of the dash, squeeze them in throught the dash crack (ull see it with the door open)
And take them where u want..

Don't worry about wires being pinched by the door..they won't, I have vaccum tubing, shitload of wires running through..no problems.. U can aslo use some of that flexible split tubing so it looks neater and no exposed wires..

That's what I found to be the easiest fastest way...the firewall is just too hard and there's no holes.

 

Update: I *was* able to get the cables routed through that large harness plug in the center of the firewall.

1.) Starting from the engine bay (with all plastic shrouds and the strut bar removed) gently strip back the electrical tape on the large rubber boot so that the boot can be spun freely from the wires running through it.

2.) Now, pull on the rubber tabs on the boot to dislodge the rubber portion from the plastic ring behind it.

3.) Press inward on the 4 tabs on the white plastic ring and pull it away from the firewall.

4.) Stretch out the rubber boot with one finger from the back and slide the cable and plug through the front-side.

5.) Now, since my LM-2 is in the glove-box I needed to make sure that the cable dropped out on the passenger side. (Not sure if this still works for the driver side) As you feed the plug into the firewall, try to keep the plug pointed down-ward and rotated slightly to aim it to the passenger side.

I fed through about a foot and a half and decided to check my progress. After I pulled the carpet back a little bit I could see the plug and cable dropped neatly into the cabin.

Getting the rubber boot attached to the white plastic ring again is kind of a pain, but keep at it. It'll go.

As noted, I'm running an LM-2. Depending on the manufacturer of your unit, the cable's plug may or may not fit.