O2 Sensors- Header install
Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
O2 Sensors- Header install
OK guys, I went ahead and opted forthe Stainless Works 1 3/4" from MTI Racing headers. Love the quality and fitment is great thus far. They sold three other sets of these things the day before so they are having to make me another X-pipe that I can pick up Wednesday to finish my install.
From start to finish (w/o xpipe install) it took me 3.5hrs and that was with a few breaks or phone calls. Very straight forward in a garage on jack stands.
Anyways my question is this........
Can I use the rear O2 sensors as they reach the port or do I have to use the O2 extensions from the front to reach? I will be having the car tuned and will then have the extra sensors turned off so no worries there.
Thanks.
From start to finish (w/o xpipe install) it took me 3.5hrs and that was with a few breaks or phone calls. Very straight forward in a garage on jack stands.
Anyways my question is this........
Can I use the rear O2 sensors as they reach the port or do I have to use the O2 extensions from the front to reach? I will be having the car tuned and will then have the extra sensors turned off so no worries there.
Thanks.
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
Not sure I understand your question, are you only installing one set of sensors? If so they should be the front ones. If there hi flow cats and there is a bung for the rears use the extensisons and install the rears also. Your tuner can set everything up so you won't throw any codes without the need to shutthem off.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
since you also state that you're gonna have the rear o2 sensors tuned out i wouldn't worry about it and just tune them all out, you might have issues passing any emmisions tests down the road but oh well it's what you want.
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
Tuning them all out is not a good idea. I am sure someone will correct me if I am wrong, but I believe the computer monitors the O2 sensors and adjusts the fuel trim terms to maintain proper air/fuel ratios.
Team Owner
Joined: Aug 2003
Posts: 38,314
Likes: 35
Its the fronts that do that, You can turn the rears off, though I would make every tuning effort to avoid doing so however,
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
Yes I know that, but post number 2 I think suggested tuning them all out and I was referring to that. I agree though that a good tuner should be able to keep all 4 operating.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
'tuing them all out' simply means to tune the car so they are no longer required. remember back in the '70's, before 02 sensors were used.
i don't believe a 1/4 mile car requires o2 sensors.
personally, i would rather keep them active, for a daily driver, as are mine.
i don't believe a 1/4 mile car requires o2 sensors.
personally, i would rather keep them active, for a daily driver, as are mine.
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Thread Starter
Le Mans Master
Joined: Oct 2006
Posts: 5,078
Likes: 19
From: Cumming, GA
After reading the first few replies I see how my original post was not the best. Here is where I am at.
The headers I have have only 1 O2 port on each header. Now keep in mind I have not received my xpipe as of yet, should be wednesday, and maybe that will answer my question if the other 2 are on there somewhere.
But at this point I have 2 headers installed in the car, awaiting xpipe, and the headers have 1 O2 port each and I have 4 O2 sensors hanging waiting. So my guess from above replies would be that I HAVE to use the front two O2 sensors and maybe zip tie the other rear sensors up if there is no bong on the xpipe I get............this sound right? The two ports are just after the collector on the headers.
sorry for the confusion.
The headers I have have only 1 O2 port on each header. Now keep in mind I have not received my xpipe as of yet, should be wednesday, and maybe that will answer my question if the other 2 are on there somewhere.
But at this point I have 2 headers installed in the car, awaiting xpipe, and the headers have 1 O2 port each and I have 4 O2 sensors hanging waiting. So my guess from above replies would be that I HAVE to use the front two O2 sensors and maybe zip tie the other rear sensors up if there is no bong on the xpipe I get............this sound right? The two ports are just after the collector on the headers.
sorry for the confusion.
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
After reading the first few replies I see how my original post was not the best. Here is where I am at.
The headers I have have only 1 O2 port on each header. Now keep in mind I have not received my xpipe as of yet, should be wednesday, and maybe that will answer my question if the other 2 are on there somewhere.
But at this point I have 2 headers installed in the car, awaiting xpipe, and the headers have 1 O2 port each and I have 4 O2 sensors hanging waiting. So my guess from above replies would be that I HAVE to use the front two O2 sensors and maybe zip tie the other rear sensors up if there is no bong on the xpipe I get............this sound right? The two ports are just after the collector on the headers.
sorry for the confusion.
The headers I have have only 1 O2 port on each header. Now keep in mind I have not received my xpipe as of yet, should be wednesday, and maybe that will answer my question if the other 2 are on there somewhere.
But at this point I have 2 headers installed in the car, awaiting xpipe, and the headers have 1 O2 port each and I have 4 O2 sensors hanging waiting. So my guess from above replies would be that I HAVE to use the front two O2 sensors and maybe zip tie the other rear sensors up if there is no bong on the xpipe I get............this sound right? The two ports are just after the collector on the headers.
sorry for the confusion.
Team Owner
Joined: Aug 2003
Posts: 38,314
Likes: 35
The bungs will be in the X pipe down wind of the cats.But to the original poster, if you are not going to run your rear 02s then no need to hook them up. But you will have to close the 02 bungs in the x pipe.
You'll need to run the front 02s though. Irrespective of your decision about the rears.
Last edited by '06 Quicksilver Z06; Mar 2, 2007 at 11:55 PM.
Advanced
Joined: Apr 2006
Posts: 70
Likes: 0
The xpipe will have the rear o2 sensors bungs, but if you are getting the rear o2 sensors tuned out i would not reinstall the rears that way you dont have to deal with running the wiring along the exhaust and risk a melting/burning mess.
As far as the running of the car, the rear o2 sensor dont affect how the car runs, that is the job of the front o2 sensors, all the rear o2 sensors do it monitor the CATS.
I hope that answers your question.
if not lemme know and i will try to answer it better than this
As far as the running of the car, the rear o2 sensor dont affect how the car runs, that is the job of the front o2 sensors, all the rear o2 sensors do it monitor the CATS.
I hope that answers your question.
if not lemme know and i will try to answer it better than this