I just purchased an AEM Wideband and wanted to know where to position the bung on the Buschur downpipe. I have their standard 3" TBE with test pipe and bullet muffler. If anyone has pictures that would be great.

Thanks!

 

It doesn't matter what down pipe you have you should try to keep it between the 9 and 12 o'clock position. Anything below that and you will mess up your sensor with condensation.

 

12" past the turbo is the recommended position, IIRC for AEM Widebands.

I ran the AEM UEGO wideband in the stock o2 placement in my vwjeff o2 housing without any problems for 10k miles.

By the way, why wouldn't you post this up where the knowledgeable people are?

http://www.buschurforums.com/forum/

 

http://www.carbide-red.com/pdf/aem_uego_30-4100.pdf

 

I believe they run the sensor in the stock o2 housing spot. I haven't got AEM yet so I can't tell you for sure.

 

Run the wideband sensor in the rear o2 sensor bung.

 

What if you currently have your secondary o2 in that bung? Check engine light would be an annoying problem.

 

Disable the CEL using a Tephra hack via ECUFlash. Quite simple to do!

 

Putting the sensor that far back usually means you don't get an instantaneous reading. I usually locate the sensor between 8-12" from the turbo for the best readings and to avoid as much carbon build up as possible.

 

What about if you run the sensor in the test pipe? I have a bung in my Megan test pipe.

Also I run a manual cut-out out of my test pipe. Will it make a difference if I put my UEGO sensor a few inches before the cutout?

 

I don't think putting it that far back would be a problem. If you notice, when you go in for a tune on a dyno, the wideband is always placed at the end of the muffler. I would think that as long as you don't have any leaks in your exhaust system, you should get some acceptable readings.

 

Has anyone had an exhaust shop weld the bung? If so, what did they charge you?

 

i've had one welded for a friend they charged 70$ an hour for stainless welding but it only took 15 minutes pry and he had a minimum charge of 35$ so he got his welded for 35$

 

i would like to know this to my downpipe is heat wrapped so i dont wanna unwrap it and rewrap it just to weld a bung in....i also have a test pipe with a cutout in it...i'm thinking about putting it as close to the flange as i can on the downpipe side....should work just fine IMO

 

Yes they do, but I've talked to a few dyno operators who say it's not the best way at all, it's just a precaution if something ends up going majorly lean. The response time is just too much from the actual turbo placement to the end of the exhaust pipe, so by the time it picks it up you may have caused damage at that point. Plus you usually can't keep the sensor warm enough from the exhaust gases itself so it constantly has to keep reheating itself in order to keep the proper temperature.

I have mine placed in the downpipe right after the o2 housing, there's plenty of room for it and still be accessed easily enough if you have to remove it for calibration or replacement.