Wouldn't you need to mount another O2 sensor (or at least unplug it from
the ECU) to adequately measure this minute voltage adequately. Wouldn't the
voltage drop to the VOM affect the signal to the ECU and interfere with the
Mixture setting updates..  I'd be interested in this too.  By the way,  CB
(Claudes buggies)) sells a  dash mounted air/fuel mixture gauge (Volt
Meter).  Let me know what you find out.

Have fun

Steve Blackham
Centerville, Utah
77 Bus converted to camper (westy top)
87 Weekender

>I am looking for a pod mountable (VDO style) digital volt gauge that I can
>mount in my Westie.  It has to be able to accuratly display 0.01V to
>aproximately 15.00V.  The purpose of this gauge is to monitor the battery
>voltage like a "normal" volt gauge, but at a flick of a switch, I would
>like to be able to monitor the output of the Oxygen sensor, which is
>typically 0.50 to 1.00V to see if I am running lean or not.
>
>Thanks in advance!
>
>-- David Marshall - Volkswagen Enthusiast - Quesnel, BC, Canada   --
>-- 78 VW Rabbit, 80 VW Iltis, 80 VW Caddy, 84 VW Westfalia        --
>-- 85 VW Cabriolet, 87 Audi 5000 Quattro, 88 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)  --