That sensor may be old but it's not slow. Can't tell if it's reading
right, too high or too low, but if the open loop reading is midway on the
LED bar-o-graph then it's probably an ok sensor.

My $0.02. Accept no substitutes. Member FDIC.

--
Mike "Rocket J Squirrel" Elliott
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
Bend, OR
KG6RCR

On 5/9/2009 11:27 AM David Beierl wrote:

> At 11:32 AM 5/9/2009, Rocket J Squirrel wrote:
>> For the record, my O2 sensor cycles at 126 beats per minute according to
>> my metronome. That's 2 cycles per second in a 1.9L @ 3000 rpm.
>
> And 124 transitions in sixty seconds elapsed, 2.1l @3000 rpm.  140,000
> miles, old sensor -- unknown whether original.
>
> Now I'm bummed.  I really want that sensor to be sloppy and bad and all
> manner of evil.  Replacing the traitorous revolting thing should cause
> my motor to run perfectly and give me 20 mpg at sea level.
>
> Am I doomed to disappointment?  Or can I figure out a way to decide that
> the test is inadequate, so I can replace the sensor without feeling silly?
>
> Or am I doomed to spend $70 and some swears purely as a sacrifice to the
> gods of magic?  The magic doesn't work if the price isn't enough to hurt
> -- but $70 is still worth twenty bucks, even today.
>
> Well, gentle readers?  What would *you* do?
>
>
>  --
> David Beierl - Providence RI USA -- http://pws.prserv.net/synergy/Vanagon/
> '89 Po' White Star "Scamp"
>