The conversion kit utilizes the stock catalytic convertor. The O2 sensor is
mounted in the cat in most Vanagons. The CO is adjusted by plugging the
receptacle that comes with the motronic engine management system into the VAG
1552 computer, where you can manipulate the CO level. If I understand what
typically kills a cat, it is an engine running to rich or to high of a CO
level.

David Marshall wrote:

> Wow... as I said, very strange - how do you adjust the CO content of the
> exhaust?  You're getting something that will be illegal in Canada and more
> than likely most of the USA.  In Canada (BC and NS, NB, PE at least), if
> you car has an O2 sensor and a catalitic converter you are not allowed to
> remove them, BIG fine if you do (Shhh - I don't have a cat!).  I'm pretty
> sure the EPA has a rule like this for the United States as well.  You
> should really try to keep the cat, but without an O2 sensor, it'll die a
> quick death.  There must be a provision for an O2 sensor somewhere!
>
> At 10:42 PM 04/02/2000 -0800, se7en wrote:
> >
> >
> >David Marshall wrote:
> >>
> >> No O2 sensor??? Really?  That's really strange!
> >
> >That's what I understand. We'll see when it gets here. Apparently it is
> >a Motronic brain.
> >
> >Arlen
> >
> >
>
> --   David Marshall -                    - Quesnel, BC, Canada   --
> --    78 VW Rabbit, 80 VW Caddy, 84 VW Westie, 85 VW Cabriolet   --
> --       87 Audi 5000 Quattro, 88 2.0L VW Syncro Double Cab      --
> -- David's Volkswagen Home Page        http://www.volkswagen.org --
> -- Fast Forward Autobahn Sport Tuning  http://www.fastforward.ca --
> -- david@volkswagen.org (pmail) or vanagon@volkswagen.org (list) --