Luxus Panzer

hells yeah for the Airbox workshop!!!!

cbkenison

Swage, new word/tool/process. I had to look that up.

CrazyCab

I'd be all over this, but my O2 sensors probably have close to 70k on them at this point.

quattro90S6

far less than 20k, however i have just bought a stock air box that i need to install and alleviate my steering/alignment problems

audiffooda

I have an early 95 B4 90 quattro sport. It has an AAH 12V. I have intalled an "s" TB from an A6 Avant. I have also done the DIY 471A MAF conversion and am running an o-ring in there. No CEL's since install 7000 mile ago. Replaced oxygen sensors with bosch 3 wires that I soldered and heat shrinked 10,000 miles ago. New Audi air filter 3,000 miles ago. DIY intake hoses. Running NGK BKUR6ET-10 plugs. Car has 97,000 miles on it. Timing belt service is done. It runs real stong and I would love to be a tester for this VS. I am new to the forum, but have been following it for 5+ years. This is my second AAH 90 Quattro.

VAP

and require no soldering/crimping or heat shrink to install. Far far too many issues associated with universal/generic O2 sensors on these cars to be a reliable test platform. The local tester throwing codes is identical to your setup, ie; soldered-in Bosch Universal 3-wire sensors.

Thanks for your offer but at this point in time and to eliminate variables I need one more person using the identical setup that came on the car when new from the factory sensor-wise.

Lago Blue

<center><img src="http://ecx.images-amazon.com/images/I/41FSFN8R0ZL._SS500_.jpg"></center><p>...may change. See more detail of Bosch's fix here:

http://www.boschautoparts.com/NR/rdo...nectSystem.pdf

The above photo &amp; drawing shows Bosch's recent attempt to address what it obviously also recognizes as part of the "Universal" problem. This is their "fix". You can read all about it here; see "BACKGROUND OF THE INVENTION" under " Description:" (it's long):

http://www.freepatentsonline.com/6672900.html

However as...

"...Currently Bosch offers (-only-) 12 different 4 wire sensors and (-only-) 2 different 3 wire sensors to provide the <u>closest</u> (emphasis added) match to OEM sensor performance." (from Bosch's own description of their aftermarket universal heated oxygen sensor program)

...perhaps "closest" still only counts for horse-shoes &amp; hand-grenades?

Mance, If you still need a volunteer, my filter-box is probably still stock enough, my sensors &amp; filter recent enough &amp; I'd like to try it cause my modded V-stack of yours is so similar to your new one! If you read it through (link below), you'll see that no "flat edge cut off its' perimeter" is just what I asked for!

Oh, &amp; I promise not to take a hammer to it till after the trial! You may still have my "ship to" but I am in Canada.<ul><li><a href="https://www.audiworld.com/forums/showpost.php?p=24019726&postcount=14">my filter-box &amp; modded V-stack...</a></li></ul>

VAP

and not the narrow-band our ECUs require. Early-on I tried numerous curved tapered wall configuration VS's and couldn't get within 12% of the flow that a straight tapered wall VS netted me at that location. They were also more turbulent/disruptive across the sensor wires. I did get better flow with a slightly curved tapered recovery sleeve but the airbox outlet positively hated a true radiused "trumpet-curve" VS inlet. I have no idea how/why that is other than perhaps something about the pleated paper filter media contributing to or aggrivating some unknown situation. Certainly wouldn't have cost more to make curved dies than straight walled ones but I just couldn't get them to behave as well or flow as much air at the airbox outlet.

Lago Blue

...I'd like to.

VAP

tonight at an outdoor venue and probably won't hear from the guy till he gets off work and I'll be long gone by then til midnight or so.