-------------------
Hi Hans,
    I would check the voltage output  on the O2 sensor with a hot engine
(warmed up).  If it is bouncing above and below  0.5 volts your digijet
system is doing the best it can do. You must use a  digital volt meter.
Radio shack has them for less than $25 and I just got a flier from circuit
specialists  at www.web-tronics.com with one for $19. If the voltage is ok
then your best choice is to install a cat.  I have seen many cars pass smog
inspection here in Illinois without a cat.
Darrell

-----Original Message-----
From: Hans Eisenbeis <hans@REQUESTLINE.COM>
To: vanagon@GERRY.VANAGON.COM <vanagon@GERRY.VANAGON.COM>
Date: Wednesday, February 03, 1999 11:32 AM
Subject: emissions

>I know this is an exhausted thread (ahem) but I'm new to the group,
>and I'm having trouble passing emissions w/ my '84 wasserboxer GL.
>
>The CO is just slightly high -- like 3 %.  But having done a bunch of
>exhaust work recently, I know the CAT is completely toast (as in ~empty~).
>
>Any helpful hints about quick and easy fixes for elevated CO?  Normally,
>I'd consider
>replacing the CAT kind of drastic, but I have a line on a really cheap new
>one. Would this
>even fix the CO problem though?  What does a CAT really do anyway?
>
>Hans
>'84 GL
>
>Hans Eisenbeis, editor & producer
>http://www.requestline.com
>Request Magazine Online
>