Wide Band O2 Measurement

[rr]

Probably only under rich WOT operation. The cats would
not be able to oxidize the excess fuel with no O2. Once
the AFR approaches stoich, past to lean, no way.

BobR.


On Thu, 31 May 2001 11:40:38 -0400
 Robert Wimmer <wimmerr at georgetown.edu> 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
> 
> 
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