O2 sensor question

[Dave & Irina Eicher]

How did you learn what sensor output translates to what AFR? Do you have a
spec on the sensor? That's what I'm look for too, a sensor and a spec,
thinking I could figure out a way to read it and make use of it.

thanks, dave

----- Original Message -----
From: Chad <chad at dynojet.com>
To: <diy_efi at diy-efi.org>
Sent: Wednesday, March 22, 2000 10:28 AM
Subject: Re: O2 sensor question


> The new model Cadillac Catera uses a wide band O2 sensor.  This particular
> sensor needs a fairly sophisticated control loop to make it work though (I
> haven't worked with many others yet).  I've seen it done analog, a bosch
unit
> we had in used opamps, but we decided to go digital.  We used a
microcontroller
> to control the heater (it has to be the right temperature to be accurate),
> check the O2 level, and communicate with the A/F display (in our case, a
PC).
>
> chad
>
> >Haven't investigated sensors yet, I was hoping to find one that came with
a
> >spec so I could see what the output curve is, then read with an ADC and
> >micro, display on a little LCD. Do you know of a low cost source for
these
> >wideband sensors?
> >
> >dave
> >
>
>
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