Re: ONE WIRE O2 TO HEATED O2

[David Cooley <n5xmt@bellsouth.net>]

At 10:12 PM 4/8/00, you wrote:
>At 01:35 PM 8/4/2000 -0400, you wrote:
> >Yep, done that.
> >New O2 has 3 wires, signal, one to power, and one to ground.  Use ohm meter
> >(DVM) for finding the heater wires.  Actually there is a 4 wire version but
> >the're $$.  There are different ones, but I've never been picky about which
> >one (just stick with Delco/GM/AC {for a gm application}), some claim some
> >are more tolerant of lead.
>
>Just curious - is the heater on all the time or does the ECU only turn the
>heater on when its at low load - such as idle and during warm up ?
>
>Incidentally, I'd doubt any credible supplier would claim any sort
>of lead resistance, the stuff is insidious and messes up lots of industrial
>sensors far too easyily...


It's on any time the key is in the "run" position.


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David Cooley N5XMT Internet: N5XMT@bellsouth.net
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