O2 sensors at WOT?

ron.boley ron.boley at worldnet.att.net
Thu Nov 5 01:52:47 GMT 1998


Bruce,

I may be missing something but the archives just list references to the
papers.  I'd like to see the actual papers....  How does one do that?

Ron


Bruce Plecan wrote:
> 
> -----Original Message-----
> From: ron.boley <ron.boley at worldnet.att.net>
> To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> Date: Wednesday, November 04, 1998 7:53 PM
> Subject: Re: O2 sensors at WOT?
> 
> DIY_EFI Homepage,  Click on Search the archives, go by subject or content.
> lots of reading
> Bruce
> 
> >Bruce,
> >
> >Can you advise where one can see these archives (CARB,EPA,SAE)?  Does
> >one have to belong to these organizations to get access?
> >
> >Thanks Ron
> >
> >Bruce Plecan wrote:
> >>
> >> -----Original Message-----
> >> From: Chris Conlon <synchris at ricochet.net>
> >> To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
> >> Date: Tuesday, November 03, 1998 10:03 PM
> >> Subject: RE: O2 sensors at WOT?
> >>
> >> >> > man's gas analyzer could be constructed using one heated (to measure
> >> O2)
> >> >> > and one unheated to measure hydrocarbons, etc???
> >> >> No.  What the report said (I read it) was that NO O2 sensor senses O2
> >> >> at the temperatures that they operate at.  They sense hydrocarbons
> >> >> only.  The temperature required for them to sense O2 was much higher
> >> >> than the O2 sensor in a normal exhaust stream was supposed to be
> >> >
> >> >I had always heard, but never tested, that the O2 sensor reads *lean*
> >> >under conditions of a rich misfire, due to lots of O2 in the exhaust.
> >> >Sounds like this would be an easy test to see if the O2 sensor is
> >> >really responding to O2 or HC. Comments? Maybe I need to go yank off
> >> >a plug wire...
> >>
> >> I'd suggest a good going over the archives, there are several reports
> >> and documents all with slightly different takes on the situations.
> >> >From CARB_EPA_SAE all have points and counter points.
> >> Some of the older documents don't even mention thermally compensated
> >> sensors.  Then are you all talking about just the
> >> switch type, and or the wide ratio.  Also is the way the sensors
> >> react to different gases as they heat up
> >> Cheers
> >> Bruce
> >>
> >> >
> >> >   Chris C.
> >> >
> >
> >



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