the last new one I checked.....
a new Bosch, and using a digital volt meter......
the voltage was going from about .2 to .8 volts very, very fast.
Like several swings in voltage change  or range, per second.
I had never bothered to check a new one much.....and boy, did this one
change voltages fast.

----- Original Message -----
From: "David Beierl" <dbeierl@ATTGLOBAL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Wednesday, May 06, 2009 3:38 PM
Subject: O2 sensor transition time

> Running an '89 2.1l -- how fast should the O2 sensor change
> states?  I don't mean how often, but literally how rapidly at say
> 3,000 rpm to go from .7v to 0 or the other way on Ken's little
> gizmo.  Mine seems kinda lazy to me, but it's been a long time since
> I've seen a new one running.
>
> Thanks,
>
>  --
> David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
> '89 Po' White Star "Scamp"