Logs of individual cyl with O2+WB

Peter Gargano peter at techedge.com.au
Tue Jul 10 11:44:21 GMT 2001


Rich M wrote:
> 
> A rich misfire will put a cylinder of oxygen and fuel into the exhaust - as
> the O2 sensor is only sensitive to oxygen and not fuel, it will see a huge
> quantity of excess oxygen and hence a lean reading.

Thanks Rich!  Another way to think of it is as is show here:

   http://www.technocarb.com/o2.htm
   http://www.technocarb.com/tio2.htm

...where it's the oxygen partial pressure that's important, rather than the
fuel content, as I was thinking.

Peter.
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