I expect the voltage to swing from zero to one volt , two to three times a
second at hiway speeds. I also noticed the moving dot disappears for a
second or two as the idle position sensor is activated.

A bad ground between engine and chassis will mess with this tiny voltage.

Ken Lewis
http://neksiwel.20m.com/

----- Original Message -----

>I have one of these too - but my meter lights are all over the map.
> It will start near center when first started, but while driving is almost
> like it is in random sweep mode. Sometimes it will go right off the scale
> (no lights for awhile)
>
> I'm guessing that this is indicitive of a problem O2 meter?
>
> Todd
> '88 Westy