# O2 Sensor will not fit on Turbo Elbow **URL:** \ **Category:** SON240sx Automotive\ **Created:** [February 27, 2005, 11:50am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923 "2005-02-27T11:50:10Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![DETS14](https://avatars.discourse-cdn.com/v4/letter/d/ee59a6/32.png) [@DETS14](https://forums.speedlife.net/u/DETS14)\ **Post date:** [February 27, 2005, 11:50am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/1 "2005-02-27T11:50:10Z")
I wasn’t given an adapter, and I have the skinny O2 sensor. Ay of you guys have this problem? Im thinking of drilling into the cap off stud they gave me, and retapping it to thread. What did you guys do? ---
**Author:** ![Nave](https://avatars.discourse-cdn.com/v4/letter/n/e47774/32.png) [@Nave](https://forums.speedlife.net/u/Nave)\ **Post date:** [February 27, 2005, 12:07pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/2 "2005-02-27T12:07:30Z")
I cut if off and welded a new bung on, then threaded that. I remember the thread being an “odd ball” size, available but not too common. I think it is a 12mm but I would have to check. ---
**Author:** ![Mr\_zero](https://avatars.discourse-cdn.com/v4/letter/m/97f17d/32.png) [@Mr\_zero](https://forums.speedlife.net/u/Mr_zero)\ **Post date:** [February 27, 2005, 12:13pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/3 "2005-02-27T12:13:47Z")
Yeh I am having this problem. I have not done anything yet, but I am thinking about drilling into the cap? I dont know, maybe there is a better way. Where can you get a new bung from? ---
**Author:** ![DETS14](https://avatars.discourse-cdn.com/v4/letter/d/ee59a6/32.png) [@DETS14](https://forums.speedlife.net/u/DETS14)\ **Post date:** [February 27, 2005, 12:51pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/4 "2005-02-27T12:51:02Z")
Im actually gonna go to brafasco and get what is called a reducer, its the same thing as the stock one, but it will be smaller diameter to fit the o2 sensor AND on the new elbow. ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [February 27, 2005, 4:16pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/5 "2005-02-27T16:16:04Z")
> [@DETS14](#): > > Im actually gonna go to brafasco and get what is called a reducer, its the same thing as the stock one, but it will be smaller diameter to fit the o2 sensor AND on the new elbow. Good luck finding the correct thread… ---
**Author:** ![DETS14](https://avatars.discourse-cdn.com/v4/letter/d/ee59a6/32.png) [@DETS14](https://forums.speedlife.net/u/DETS14)\ **Post date:** [February 27, 2005, 8:52pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/6 "2005-02-27T20:52:27Z")
> [@SHIFT\_SR20DET](#): > > [quote=DETS14]Im actually gonna go to brafasco and get what is called a reducer, its the same thing as the stock one, but it will be smaller diameter to fit the o2 sensor AND on the new elbow. Good luck finding the correct thread…[/quote] Yea thats the problem. ---
**Author:** ![iQuAGoD](https://avatars.discourse-cdn.com/v4/letter/i/f05b48/32.png) [@iQuAGoD](https://forums.speedlife.net/u/iQuAGoD)\ **Post date:** [February 28, 2005, 7:54am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/7 "2005-02-28T07:54:42Z")
Yet another reason to buy quality Japanese products such as the Trust Turbo extension. Plug that hole and drill and tap another, thats the easiest way. ---
**Author:** ![slipperysilvia](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/slipperysilvia/32/5485_2.png) [@slipperysilvia](https://forums.speedlife.net/u/slipperysilvia)\ **Post date:** [February 28, 2005, 9:09am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/8 "2005-02-28T09:09:52Z")
it aint a matter of trust, hks, or anything like that…its the fact that all these exntensions are made to work with the s13 redtop o2 sensor…the s13 blacktop one is a lil thicker… ---
**Author:** ![dip](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/dip/32/5479_2.png) [@dip](https://forums.speedlife.net/u/dip)\ **Post date:** [February 28, 2005, 9:19am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/9 "2005-02-28T09:19:45Z")
varun, it doesnt fit either of them only the SOHC sensor fits and its useless ---
**Author:** ![slipperysilvia](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/slipperysilvia/32/5485_2.png) [@slipperysilvia](https://forums.speedlife.net/u/slipperysilvia)\ **Post date:** [February 28, 2005, 9:22am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/10 "2005-02-28T09:22:22Z")
yes it does, as long as ure 02 sensor came oem from 1989-1993 on a redtop sr…and i heard that some late model 1993 redtops used the black top o2 sensor…this all word of mouth, no factual info from nissan as yet though. ---
**Author:** ![iQuAGoD](https://avatars.discourse-cdn.com/v4/letter/i/f05b48/32.png) [@iQuAGoD](https://forums.speedlife.net/u/iQuAGoD)\ **Post date:** [February 28, 2005, 10:32am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/11 "2005-02-28T10:32:59Z")
My redtop uses the skinny sensor and it would not fit the other turbo extensions. The GReddy Turbo Extension I have fits both the fat one and the skinny one because it comes with the proper adapter. But hey, you guys got your stuff for cheap, so you cant complain. ---
**Author:** ![bing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bing/32/7211_2.png) [@bing](https://forums.speedlife.net/u/bing)\ **Post date:** [February 28, 2005, 10:45am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/12 "2005-02-28T10:45:22Z")
i have one of the ebay ones, i had no problem with O2 sensor. ask H, Matt and darien, they had this same problem. it is just a matter of getting the right O2 sensor, there are at least 2 different versions. ---
**Author:** ![DETS14](https://avatars.discourse-cdn.com/v4/letter/d/ee59a6/32.png) [@DETS14](https://forums.speedlife.net/u/DETS14)\ **Post date:** [February 28, 2005, 11:15am UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/13 "2005-02-28T11:15:59Z")
Im going today to nissan to grab a new O2 sensor, which do I need and what will I pay? ---
**Author:** ![S13GG](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s13gg/32/5506_2.png) [@S13GG](https://forums.speedlife.net/u/S13GG)\ **Post date:** [March 1, 2005, 9:13pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/14 "2005-03-01T21:13:38Z")
I believe that the skinny O2 was an 87 Z31 turbo, while the fat one was a 95 Z32 turbo. ---
**Author:** ![Uniac](https://avatars.discourse-cdn.com/v4/letter/u/34f0e0/32.png) [@Uniac](https://forums.speedlife.net/u/Uniac)\ **Post date:** [March 2, 2005, 3:22pm UTC](https://forums.speedlife.net/t/o2-sensor-will-not-fit-on-turbo-elbow/83923/15 "2005-03-02T15:22:18Z")
derian is correct the skinny one is from a 87 turbo 300zx, and the fatty is from a 300zxTT you should beable to make an adapter to fit, but both o2’s are around 80$ new so just buy a new one… Or if you’re me…pay 40$ each HAHAHAHA suckers!