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Stupid question, I know, but has anyone put a Wideband o2 sensor in ARH mid length headers? I bought the HP tuners package with the Wideband attachment for the exhaust pipe, but it keeps falling off, and I think they say there's a .5 point difference because it's so far back. Plus it doesn't register below 1500 or 2k rpm because not enough pressure. I'm learning a lot, but still have a lot to go... Thank you!!!
I did use an AEM wideband on my ARH mid length, and used the same wideband when I switched to ARH 2" . Never had a problem
Originally Posted by Jeremie Fischer
Not sure if it'll help you or not, since I have Kook's long tubes, but I put my sensor in the x-pipe and haven't had any issues at all with it.
thanks for the responses guys. Definitely does help. I also have the AEM Wideband. corvette4ever, where did you put it on the mids? The x-pipe was an option I was contemplating also, and haven't ruled it out yet.
Another question: Did you guys drill a hole and use a collar type bung, or weld a bung in? I've never welded, so it would have to be done for me.
Last edited by SharkGrayStingray; Dec 13, 2021 at 09:30 PM.
gotcha. I have the catted and I was just under the car for the good part of an hour just trying to figure if I have enough room before the cats, right after the front o2 on the collector. There's a slight chance, if done perfectly, it would fit, but I don't want to take the chance. X-pipe is still an option, but being this is just for my "hobby", I might just leave things as is and not f anything up. decisions, decisions... lol
Replace a primary O2 while you're tuning, then put the wideband post cat after. Once the excess fuel burns off in the cat it will not affect your readings if you just want the wideband as a sanity check after you're done tuning.
Replace a primary O2 while you're tuning, then put the wideband post cat after. Once the excess fuel burns off in the cat it will not affect your readings if you just want the wideband as a sanity check after you're done tuning.
Excuse my ignorance, but why change a primary o2? At first I thought you meant change a primary to a Wideband and tune it but then you said put the Wideband post cat and you lost me. lol. Thanks
Excuse my ignorance, but why change a primary o2? At first I thought you meant change a primary to a Wideband and tune it but then you said put the Wideband post cat and you lost me. lol. Thanks
You have it right. Remove primary o2, stick wideband in for initial tune. After you're comfortable with where it is put your primary o2 back and put the wideband in the post cat bung. It will read correctly post cat after excess fuel is burnt off the cat, but there will be a delay in it leveling out to be correct. So if you do a permanent install on the wideband post cat just understand that basically your tip in readings will be wrong. It would be best if you could get a bung before the cat but that's probably not feasible.
You have it right. Remove primary o2, stick wideband in for initial tune. After you're comfortable with where it is put your primary o2 back and put the wideband in the post cat bung. It will read correctly post cat after excess fuel is burnt off the cat, but there will be a delay in it leveling out to be correct. So if you do a permanent install on the wideband post cat just understand that basically your tip in readings will be wrong. It would be best if you could get a bung before the cat but that's probably not feasible.
Thank you for clarifying!!!! Yeah, I was going to put it right after primary, right before the cat on the drivers side, but I would literally have to be 100% perfect on placement cause of how little room there is, so I don't want to take that chance. If I were doing this for anything other than hobby (I love working on this car as much as I can), then I'd probably try doing that...
Might as well reignite this thread, it's relevant. I have my new catted ARH mid-length system and trying to figure where the wideband bung should go. Having a local speed shop install them ... hoping they can figure it out but wanted to check here too.
As I understand, for best accuracy the wideband sensor has to be pre-cat, and it has to be in a spot where airflow over it isn't affected by the O2 sensor ... so that means I'd have to have it mounted opposite the O2 sensor, in the ~12 o'clock to 3 o'clock position.
(Tuner said they won't delete the O2 sensors in my new tune, because EPA regulations ... thus we can't just plug it into the existing O2 bung)
Haven't been able to eyeball things to see if it'd be possible to install the sensor to the right of the O2 bung in this photo - would that work, or will things be too tight?
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Wideband on ARH mid lengths?
