David,

No stopwatch or metro gnome here but running along at 3K rpm with a
warmed up engine and steady throttle I got 2 cycles per "one
mississippi" on my Ken Lewis Gizmo.   FWIW same rate at 2K rpm. 2.1L
215 Kmi on the engine.

John Meeks
'91 Multivan, '85 GL bits
Northern Michigan

Vanagon Rescue Squad
http://www.vanagonauts.com/Vanagon_Rescue_Squad74.htm

Radio Call:KC8ZFN

On Wed, May 6, 2009 at 6:38 PM, David Beierl <dbeierl@attglobal.net> wrote:
> 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"
>