[V8] O2 sensor R&R Problem

[Ingo Rautenberg]

Dave,

You beat me to it.  Yes, the regular three wire OXS uses the two white wires
to heat the element and the black wire for signal.  It might not be a bad
idea to get one of those F*rd four wire plug connectors and use the fourth
wire for ground and then use a four-wire sensor that will be easier to
plug/unplug and be more accurate (what I'd like to do).

Now, these are the wire colors from the OXS itself.  I 'm not sure what the
wires are from the harness to the plugs, but IIRC, the heater wires are
brown and the other is black with red stripe (one connector) and then the
signal wire is separate.

Ingo

----- Original Message ----- 
From: <dsaad at icehouse.net>
To: <V8 at audifans.com>
Sent: Monday, November 14, 2005 9:46 AM
Subject: Re: [V8] O2 sensor R&R Problem


> The black wire is the signal wire - it is not a simple ground. You must
get this
> fixed or the motor will not run properly. It will run - in fact it may
seem to
> run just fine but emission tests will fail and power will most likely be
reduced
> as the ECU reverts to failsafe mode.
>
> If I was me, I would try to get this back to original condition. Either
order a
> new connector if possible or get one from the junk yard. Audi/VW uses this
type
> of connector on most if not all cars. You should be able to find something
that
> works quite easily.
>
> Dave
>
> Quoting Eric Devansky <edevansky at gmail.com>:
>
> > Joe~
> > I beleve the black spade connector is just a ground wire.
> >
> > ~Eric
> >
> > On 11/13/05, Joe Griffith <jsgriffith3rd at yahoo.com> wrote:
> > >
> > > I tried to fix a surging on my new to me '91V8Q by replacing the O2
sensor
> > > this morning but ran into a little bit of a problem.
> > >
> > > While I was trying to disconnect the single black wire with the spade
> > > connection, I broke off the connection at the motor. ie the male end
of
> > the
> > > connection.
> > >
> > > I'm not sure what to do now. I cant really see in there to tell if
this
> > > can be replaced?
> > >
> > > I found some info about changing the RPM sensor, that i believe is
right
> > > next to it, in the archives, but nothing about the O2 connection.
> > >
> > > Anybody know if this is able to be replaced? and if so any ideas on
how?
> > >
> > > Thanks
> > >
> > > Joe
> > >
> > >
> > >
> > >
> > >
> > > ---------------------------------
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