Wide Band O2 Measurement

[Ron Schroeder]

At 10:07 AM 5/31/01 -0700, you wrote:
>A local dyno shop that I spoke with claimed that their wideband meter
>could accurately measure O2 downstream of the cats.  I always assumed
>that any O2 measurement (for A/F ratio) had to take place in front of
>the cats since they use some of the O2 to convert CO into CO2.  Who is
>correct?
>
>Thanks,
>
>Bob Wimmer

If it's a heated sensor, it WILL accuratly measure the O2 downstream from
the cat..........That doesn't mean that the O2 content at that point is the
same as upstream of the cat or that the reading will have any meaning of
A/F ratios.

Ron Schroeder
WD8CDH
E. E. S.
wd8cdh at bnl.gov
rjs at bnl.gov
ron at 112motors.com
631 344-4561 Day
631 286-5677 Nite
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