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O2 stuff from the archives



On 9:28:37 am 11/18/05 "Brian Spinney" <vw_85roccoZ400@hotmail.com> wrote:
> Yes the scale is 0 to 1V.
> Voltage from 0.80-1V being rich, and 0.40 to 0.55 being lean, and
> 0.55to 0.70 is right about the range you are looking for.
>

 It should fluctuate, around
> >  7V at stoich. if memory serves. You should get the car well warmed
> >  up first. The other two wires are just "in and out" power for the
> >  heater in the sensor. It's that other one you want to test. No
> >  voltage means a dead sensor. If it's off .7V (someone correct me
> >  if that's on the wrong scale, I'm useless at remembering numbers)
> >  it may mean your car is way rich or way
> >  lean. Then you can start screwing with DPR current, but not till
> >  you know your O2 sensor is working.
> >
> >  HTH,
> >  cathy
> >
Yeah, I see I left the decimal out of the first one, I'm also useless at
typing. And if you're checking it as you tune, it will change very slowly,
as will DPR current, so give it some time to sniff what's going down the
pipe.
Cathy