Re: [Amc-list] Wide-band fuel/air meters?

[Glen Hoag <hoag@xxxxxx>]

That is a narrow band O2 sensor.  It is most useful right around a 
stoichiometric mixture (14.7:1 for gasoline) because its output is 
highly non-linear.  Wideband O2 sensors require a complex drive 
circuit; the principle actually measures the current required to keep 
the test cell in balance, rather than the actual output of the 
sensor.  The Innovate LM-1 is a pretty good unit.  The TechEdge 
<http://www.techedge.com.au/> products out of Australia are based on 
a do-it-yourself project, but have had considerable development since 
the original DIY-WBo2 unit.

--Glen

At 06:32 AM 6/23/2008, Ray Mick wrote:
>This web sight  has a some good info on fuel air ratio with a wide
>band O2 sensor and a volt meter cost ya about 65 dollors.
>http://www.telusplanet.net/public/gilesij/Volvord/carb_jet.htm
>On Jun 23, 2008, at 1:49 AM, Tom Jennings wrote:
>
> > OK, I gotta get one. Joe, you have one, right?
> >
> > Can anyone suggest an inexpensive one? In-dash or hand-held, and I
> > don't
> > need data logging, just A/F ratio within a reasonable range.
> >
> > I want to tweak two carbureted cars, and later, look at one TBI car.
> >
> > They seem to run around $250 at Summit. Are there cheaper that are
> > worth
> > bothering with?
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>Ray Mick
>Somewhere in Kansas
>"The older I get the faster I was"
>72 Javelin/AMX
>72 Javelin R/W/B SST
>
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>http://community.webshots.com/album/54361408pRyvWE
>
>My RWB Javelin@ 
>http://members.cox.net/rmick/MIDAMERICAAMC%20Folder/Mid%20America%20AMC/My%20Space.html
>
>Mid America AMC
>http://www.midamericaamc.com
>
>
>
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