O2 questions

[D. Barry Stubbs]

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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