WPSLPGExhaust Gas Oxygen (EGO) sensor Information

[Bruce Plecan]

It's been thoughly discussed several times, in the archives.
The oem ones for openers vary with operating temp..
Data subject to huge errors other then rich / lean.
Some folks insist that they can, well fine, I won't be labor the point.
I won't assume that a good O2 means my engine's mixture is fine.
Grumpy


> I am gonna put my flame suit on for a sec here.  Don't take that as me
> being a "guru" though.
>
> I was always taught that there is a small useable area on the curve of a
> standard EGO (besides the steep "switch") and it is rich of stoich.
> Mostly because there is still some slope on the rich side (but not much,
> and it looks like you'd have big problems with any offset errors when 80
> millivolts covers lambda .99 to lambda .80). That being said, I do not
> have practical experience with exploring that area of a standard
> EGO/HEGO.  I also don't think this is done in practice, at least in
production.
>
>
> -Seth
>
>
>
>
> ext-peter.betts at nokia.com wrote:
> >
> > Ah! So you think the sensor works over a larger range and just because
the
> > ECU doesn't use it, it doesn't stop me using it as a diagnostic aid with
my
> > AFR Meter?
> >
> > When I say larger range I guess it gets pretty non-linear either side of
> > stoch'  ? But I'm hoping you can still make sense of the sensor output
> > either side of it.
> >
> > Guru needed to reply I think.
> >
> > Pete
> >
> > > -----Original Message-----
> > > From: EXT Christian J. Knudstrup
> > > [mailto:Christian.J.Knudstrup at esc1.net]
> > > Sent: Wednesday, August 02, 2000 1:58 PM
> > > To: diy_efi at diy-efi.org
> > > Subject: Re: WPSLPGExhaust Gas Oxygen (EGO) sensor Information
> > >
> > >
> > > Someone correct me if I am wrong but the Sensor works at all
> > > ranges it is
> > > just that at WOT you are mostly running rich and want to be
> > > running rich so
> > > the computer is told to ignore the O2 values while at WOT.
> > >
> > > If I have misunderstood this point please someone correct me.
> > >
> > > Christian
>
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