O2 sensor wire routing help
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
O2 sensor wire routing help
So I was under my car last night to swap the exhaust and I noticed the wires from my o2 sensors hangin down a little. I checked it out and noticed the X-pipe is installed upside down, with the O2 bungs facing downward. The wires protrude downward a little and then are tied to the edge of the tunnel along both sides of the x-pipe until they go up into the engine bay. Is this the correct placement? I am pretty sure the bungs should be facing upward, so that they can not get caught on anything. If I flip the X-pipe though, I do not see anywhere to attach the sensor cables to in order to keep them out of contact with the exhaust pipes. I'm guessing this is why the last guy to work on my exhaust did it the way he did, but I just dont think it's right. So.....how am I supposed to run those O2 cables and what can I attach them to? This is with LG headers and cats. Thanks!
Former Vendor
Joined: Jan 2006
Posts: 248
Likes: 0
From: Katy Texas
I have Kooks and mine face up. I used wire clips that I picked up at the local parts store. I just removed a bolt from the tunnel plate, installed the clip and replaced the bolt. I used two on each side.
Safety Car
Joined: Feb 2007
Posts: 4,939
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From: CHOCOWINITY NC
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
That hole in the tunnel plate idea sounds kinda cool. I'm heat wrapping the wires and connectors just in case. Thanks buddy!
Pro
Joined: May 2000
Posts: 610
Likes: 1
From: Midland Texas
St. Jude Donor '09-'11
Did you flip the x-pipe so that the wire end of the sensors are aimed upwards slightly? If you don't, the sensors will be damaged when condensation water builds up in them and suddenly gets hot. They will free drain if there is a little angle on them.
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Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
I am goin to flip it over...as soon as I can get it off!! The dam thing just wont budge!! Everything is loose except the xpipe and the driver side over-axle pipe. I just cant get them seperated..I am going nuts!!
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
I just bought these clips you stated. Just wondering if that rubber will hold up to the heat?
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
HELP!!!! I can't get the FREAKIN over-axle pipe loose. I'v tried pulling, twisting, hammering, prying, heating...even tried opening the slip joint a lil with a screw driver. NO LUCK. Ideas????
Pro
Joined: May 2000
Posts: 610
Likes: 1
From: Midland Texas
St. Jude Donor '09-'11
You will have to tie off the over axle pipe to the differential with a strap or belt or stretch cord so that the joint is in tension, then wiggle the x-pipe. If there is someone there that can pull while you are wiggling the pipes, it will help. Try some solvent overnight in the joint as well. Wiggle the over axle pipe side to side at the top if you can get in there, to break the rust bond.
Maybe LG has some better ideas, as they have to deal with this three slip joint arrangement all the time.
Maybe LG has some better ideas, as they have to deal with this three slip joint arrangement all the time.
Pro
Joined: May 2000
Posts: 610
Likes: 1
From: Midland Texas
St. Jude Donor '09-'11
Another thing I have learned. Leaving the O2 harness connectors P-clipped to the tunnel plate bolts works fine on the street and drag strip. The connectors near the cats will start to melt during a track day, however, due to the higher heat levels. I have the connectors wrapped with exhaust wrap now and will try this change in a few weeks at the track. There is a reason LG recommends we put the wires/connectors above the tunnel plate and away from the cats.
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 2,231
Likes: 0
From: Brownsville Tx
Thanks for the idea on strapping the pipe to the differential. That sould help a lot.
Didn't know LG actually recommended running the wires over the tunnel plate. Looks like I got some work cut out for me!
Didn't know LG actually recommended running the wires over the tunnel plate. Looks like I got some work cut out for me!
