Header install question
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Header install question
If you run without cats do the rear O2 sensors still get mounted but with turned off codes or can they be deleted with codes turned off?
Le Mans Master
Joined: Feb 2006
Posts: 5,762
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From: Chandler Arizona
It's my understanding that they don't make O2 sims for our cars.
It is also my understanding that you can leave the O2 sensors off and just plug the openings if you get a tune and turn off those codes.
It is also my understanding that you can leave the O2 sensors off and just plug the openings if you get a tune and turn off those codes.
Instructor
Joined: Jun 2006
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From: Sterling hts. MI
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Racer
Joined: Aug 2004
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From: Kailua-Kona Hawaii
Nobody makes O2 sims for the C6, that I know of. I have my rear sensors installed and they did not throw any codes. Some Vettes do and some don't. I have a tune to eliminate them anyway. If I were you, I'd just go ahead and put them in and then get the codes deleted.
Race Director
Joined: Aug 2005
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From: Hudson WI
NCM Sinkhole Donor
I have since bought a Preditor and now it doesn't matter.
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Le Mans Master
Joined: Feb 2006
Posts: 5,762
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From: Chandler Arizona
Not true, I have ones that install in the rear sensor position and then the sensor is screwed into them. The sims space the sensor out about 1.5" so that the computer sees a difference between the fron sensor and the rear.
I have since bought a Preditor and now it doesn't matter.
I have since bought a Preditor and now it doesn't matter.
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
...and having the real o2's, why would I care or have my thread turned into a debate on whether they are needed or made?
I simply asked if the rear o2's had to be mounted in the event there were no cats since the software I stated I was using (HPTUNERS).....not predators efi live, ls2edit....ect....was deleting the codes for it.
So far I got: the o2's dont need to be mounted in the event the codes are deleted. Its relevance was if the extensions needed to be bought and if the absense of the electrical continuity would be detected as an additional code.
SIMS arent at issue since I have real O2's and I dont want the thread turned into a debate on their effectiveness or availability. Sorry for the abrasive reaction but I hate having to read through all this to get a simple answer to a question for an install I am doing for free 2000 miles from my home.
I simply asked if the rear o2's had to be mounted in the event there were no cats since the software I stated I was using (HPTUNERS).....not predators efi live, ls2edit....ect....was deleting the codes for it.
So far I got: the o2's dont need to be mounted in the event the codes are deleted. Its relevance was if the extensions needed to be bought and if the absense of the electrical continuity would be detected as an additional code.
SIMS arent at issue since I have real O2's and I dont want the thread turned into a debate on their effectiveness or availability. Sorry for the abrasive reaction but I hate having to read through all this to get a simple answer to a question for an install I am doing for free 2000 miles from my home.
Tech Contributor
Joined: Jul 2002
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From: St. Louis, MO
St. Jude Donor '08
I don't know the exact answer to your question (extensions came with my Am. Racing headers and X-pipe), but why don't you just plug them in and zip tie them up out of the way and plug the holes if the wires aren't long enough? That will work for sure.
Le Mans Master
Joined: Feb 2006
Posts: 5,762
Likes: 4
From: Chandler Arizona
I don't think they have to be mounted, but I don't have first hand experience. I had the codes turned off on my 01 Z28, but I also had the rear O2's in place and hooked up.
I would recommend you post this question over on LS1Tech.com and you will get a quick correct answer.
I would recommend you post this question over on LS1Tech.com and you will get a quick correct answer.
Drifting
Joined: Jul 2005
Posts: 1,969
Likes: 8
From: NJ
I burned through a harness and it didn't throw any abnormal codes. My rear sensors were turned off. So, bearing that in mind it seems that leaving the rears unplugged would cause no ill effect or additional codes. Plug them up and see what happens. Build the harness only after you get an unlikely bizarre code. I got a guy here who stocks the plugs if you need some I'll over night them up.
Thread Starter
Tech Contributor
Joined: Mar 2003
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From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
I burned through a harness and it didn't throw any abnormal codes. My rear sensors were turned off. So, bearing that in mind it seems that leaving the rears unplugged would cause no ill effect or additional codes. Plug them up and see what happens. Build the harness only after you get an unlikely bizarre code. I got a guy here who stocks the plugs if you need some I'll over night them up.
Safety Car
Joined: Dec 2004
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From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
if it's the error code that get's tripped, meaning you are simply clearing the error code, won't the underlying issue cause it to reappear or are you removing the code from the system, basically remarking the code out. any underlying issue would still be present and may or may not impact performance. or by deleting the code are you able to tell it to ignore any feedback from the o2s and therefore the sensors and extensions are no longer needed. could be cut and taped without any problems.
Melting Slicks
Joined: Oct 2006
Posts: 2,236
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From: Suisun City Ca
spin i just leave mine in and turn them off
i did end up removing one for my wideband though
you can also plug them in turn off codes, unplug them and turn off codes or throw them in trash and turn off codes it will all work
btw i did read your post and i do not have cats good luck!
i did end up removing one for my wideband thoughyou can also plug them in turn off codes, unplug them and turn off codes or throw them in trash and turn off codes it will all work
btw i did read your post and i do not have cats good luck!
Last edited by Robert@Advanced Dyno; Jan 15, 2007 at 01:53 AM.
Thread Starter
Tech Contributor
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
A wideband mount was als added. Vette Docs were the source and were fast with all requests having to do with the custom nature of the header mods.