O2 sensor question

[Larry" <rocco16v@netzero.com (Larry)]

They are grounded to the body (albeit indirectly) when they are in the
exhaust.

Larry

> I have a question about 02 sensors.  Will they go bad
> if you ground them to the body by accident??
>
> Reason I ask, is I am trying to tune my sds fuel
> injection with a mixture meeter.  I bought a 4 wire O2
> because you can ground it to the battery rather than
> through the exhaust (more accurate reading).  I asked
> a friend to look up which colors were which & he told
> me the wrong ones.  So, I put the signal wire to
> ground & the ground to the signal.  Is this thing
> toast?  I am at work and haven't had time to check. If
> its junk I don't want to waste time trying to make it
> work.  I haven't started the car yet, but 02s are
> essentiall always working right?  Or is is just when
> they heat up.
>
> Anyone.....
>
> Tony
>
>
>
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