O2 questions

[Mathieu Blais]

I was wondering if the voltage going to the o2 heater is either 12v or 5v or
even lower?  And the heater wires are the white ones correct?  And also how
much time does the heater usually takes to heat up the o2 approx?

    Math B
    fireb76 at videotron.ca

----- Original Message -----
From: "D. Barry Stubbs" <z24man at bellsouth.net>
To: <gmecm at diy-efi.org>
Sent: Thursday, January 18, 2001 10:02 PM
Subject: Re: O2 questions


> Doug Mansfield wrote:
>
> > I had the opportunity to finally work on it.  When I hook up my Fluke
meter
> > to the O2 lead going to the ECM (leaving the ECM in circuit) and turn
the
> > key on, I immediately get a .400V readout.  Why is the .4V coming from
the
> > ECM?
>
> Although I don't remember all the details, the voltage from the ECM is
> intentional, to bias the goodies in the sensor.  Must be something about
> the chemical reaction in the sensor...
>
> --Barry
> z24man at bellsouth.net
> AIM: thez24man
> 88 2.8 5spd Z24 15.8 at 85
> 94 Q4 5spd Z26
> 88 2.8 5spd GTU
> --------------------------------------------------------------------------
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