is this a WB02 sensor?

[The Dupuis]

Wait a minute - linear?  How do EGT variations affect the output?  I'm used
to the "0 volts means lean, 0.5 volts means good part throttle, and
depending on how long I've been boosting in this gear and how hot I think
the exhaust temperature might be 0.85 might be okay and I really hope I'm
not melting something..." of a normal O2 sensor.

I've never heard about the wideband O2 sensors, so I hate to re-open old
discussions about them but:  How "wide" are they?  How linear are they?  And
the obvious one - can they be made to work with an existing O2-based A/F
meter or custom controller (like the Megasquirt)?  Can they be used for
full-throttle closed loop tuning?  What Hondas have them (OBD II)?  If
nobody minds, I'd like to open the floor on this.

Matt

> -----Original Message-----
> From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
> Behalf Of Rob F
> Sent: December 4, 2001 10:23 PM
> To: diy_efi at diy-efi.org
> Subject: is this a WB02 sensor?
>
>
> Reading through my '00 Impreza RS shop manual, I found the description of
> the front O2 sensor (also called an A/F sensor in the book) very
> familiar...
>
> "The zirconium oxide has the property of generating electromotive
> force when
> contacting an oxygen ion, and the electromotive force generated varies
> depending on the amount of oxygen ion  The front oxygen (A/F)
> sensor detects
> the amount of oxygen in exhaust gases in a linear form by making
> use of this
> property."
>
> There is also a graph of mixture vs mA (without units of course)
> that looks
> very similar to the one on the WB02 page.
>
> So, is this the same type of sensor that is used on the Honda Civic?  Is
> this a big deal?  I mean, I had the impression that the Honda was
> the rather
> rare to have this piece included from the factory.
>
> -Rob
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