I need extensions dont I?
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 816
Likes: 107
I need extensions dont I?
I was looking under the car while doing an oil change just eye balling the header install I'll be doing in a few weeks. I bought a set of AR headers from a member here a few months back just haven't had time to put them in. The headers are catted and came with sensors but from what I can tell the factory harness is not going to reach the plugs on the headers or cats. This would lead me to believe that you have to run extensions correct? I have heard yes and no but looking at it tells me I do. Anything specific about them or just order whatever is out there?
Racer
Joined: Jun 2013
Posts: 250
Likes: 12
From: Manayunk PA
Le Mans Master
Joined: Dec 2003
Posts: 5,047
Likes: 252
From: San Diego
Yep I always use the same sensor that was in my OEM set up. Above comments are correct on tuning out your sensors but using used ones I would not try and might create issues. I've been down this road on a couple C5 header swaps. Just sharing my experience and a word of caution.
Melting Slicks
Joined: Mar 2016
Posts: 2,211
Likes: 237
From: Indianapolis IN
Yep I always use the same sensor that was in my OEM set up. Above comments are correct on tuning out your sensors but using used ones I would not try and might create issues. I've been down this road on a couple C5 header swaps. Just sharing my experience and a word of caution.
I have no idea what was going on with your C5 but it 100% without doubt was not because you switched the sides of the O2 sensors. Plenty of people do damage either the wiring or the sensor itself when removing and reinstalling.
Last edited by User Omega; Dec 4, 2016 at 05:43 AM.
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Le Mans Master
Joined: Dec 2003
Posts: 5,047
Likes: 252
From: San Diego
That is simply just not how an O2 sensor works. It either reads correctly or it doesn't. The car doesn't know or care which one you put in what hole as long as the plugs will connect to each other.
I have no idea what was going on with your C5 but it 100% without doubt was not because you switched the sides of the O2 sensors. Plenty of people do damage either the wiring or the sensor itself when removing and reinstalling.
I have no idea what was going on with your C5 but it 100% without doubt was not because you switched the sides of the O2 sensors. Plenty of people do damage either the wiring or the sensor itself when removing and reinstalling.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
Are you talking swapping your left sensor wire with your right sensor wire ... then yes you are right
But if you are talking about swapping the left O2 sensor and installing in on the right side ... then you are wrong ... the car does not care , an O2 sensor is an O2 sensor ....
Dave
But if you are talking about swapping the left O2 sensor and installing in on the right side ... then you are wrong ... the car does not care , an O2 sensor is an O2 sensor ....
Dave
Le Mans Master
Joined: Dec 2003
Posts: 5,047
Likes: 252
From: San Diego
Are you talking swapping your left sensor wire with your right sensor wire ... then yes you are right
But if you are talking about swapping the left O2 sensor and installing in on the right side ... then you are wrong ... the car does not care , an O2 sensor is an O2 sensor ....
Dave
But if you are talking about swapping the left O2 sensor and installing in on the right side ... then you are wrong ... the car does not care , an O2 sensor is an O2 sensor ....
Dave
Last edited by Brandon619; Dec 4, 2016 at 12:36 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,673
Likes: 2,728
From: Atlanta GA
just saying that there does not appear to be a right part number or a left part number , only one part number for both sides as they just vary the voltage of the signal that is sent to them
When i installed my headers i just removed them both from the pipes not even paying attention to which was the right and which was the left ....
Race Director
Joined: Sep 2007
Posts: 16,557
Likes: 2,108
From: Peoria/Phoenix AZ
C6 of Year Finalist (performance mods) 2019
I see a LS3 intake/filter in the photo and a C3 in your profile, so I'm assuming the question is about a 2008-2013.
You may not need extensions IF you can strip back the tape on the OEM harness far enough to reach the sensor connectors. I had enough length with LG headers, so take good measurements, since I gained somewhere around 14-18". You may need more or less with AR headers.
You may not need extensions IF you can strip back the tape on the OEM harness far enough to reach the sensor connectors. I had enough length with LG headers, so take good measurements, since I gained somewhere around 14-18". You may need more or less with AR headers.
Melting Slicks
Joined: Mar 2016
Posts: 2,211
Likes: 237
From: Indianapolis IN
No disrespect intended Brandon...sorry if you took it that way as it was not meant to be mean in anyway
just saying that there does not appear to be a right part number or a left part number , only one part number for both sides as they just vary the voltage of the signal that is sent to them
When i installed my headers i just removed them both from the pipes not even paying attention to which was the right and which was the left ....
just saying that there does not appear to be a right part number or a left part number , only one part number for both sides as they just vary the voltage of the signal that is sent to them
When i installed my headers i just removed them both from the pipes not even paying attention to which was the right and which was the left ....
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 816
Likes: 107
I see a LS3 intake/filter in the photo and a C3 in your profile, so I'm assuming the question is about a 2008-2013. You may not need extensions IF you can strip back the tape on the OEM harness far enough to reach the sensor connectors. I had enough length with LG headers, so take good measurements, since I gained somewhere around 14-18". You may need more or less with AR headers.
Racer
Joined: Jul 2014
Posts: 469
Likes: 44
I installed Hinson headers and the front harness reach after cutting tape. They barely make it. The rear sensors won't matter if you have them tuned out. I'm sure AR can tell you what extensions you need. Hinson sent extensions with my setup. I think 20", but not certain.
Like I said ( and did ) you'll probably want to tune them out, so you won't throw a code. The tuner told me they don't effect performance anyways one way or the other.
Like I said ( and did ) you'll probably want to tune them out, so you won't throw a code. The tuner told me they don't effect performance anyways one way or the other.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Computer doesn't care what sensor you're using . What matters is the wire is connected to the correct one and that there's nothing wrong with the sensor
Obviously swapping the wiring to the wrong side will cause issues.
Obviously swapping the wiring to the wrong side will cause issues.
Thread Starter
Burning Brakes
Joined: Oct 2007
Posts: 816
Likes: 107
I installed Hinson headers and the front harness reach after cutting tape. They barely make it. The rear sensors won't matter if you have them tuned out. I'm sure AR can tell you what extensions you need. Hinson sent extensions with my setup. I think 20", but not certain.
Like I said ( and did ) you'll probably want to tune them out, so you won't throw a code. The tuner told me they don't effect performance anyways one way or the other.
Like I said ( and did ) you'll probably want to tune them out, so you won't throw a code. The tuner told me they don't effect performance anyways one way or the other.
Thanks!
Advanced
Joined: May 2016
Posts: 73
Likes: 3
You need extension for the rears not the fronts, at least on my Z i didn't need fronts and i tuned the rears out. I have the same setup you have