RE: O2 Sensor Works HOW? was: Fw: RE:solder vs. crimp

["Fry, Larry" <LEF@chem-tronics.com>]

This will be my last post on soldering, I promise;
Even though I am a proponent of (properly) soldering electrical connections,
when I replaced my O2 sensor, I crimped it.  Why?  It was easier, quicker
and the sensor will have to be replaced long before the crimped connection
has any chance to deteriorate.  
Crimp 'em, boys, crimp 'em.

Larry sandiego16V
old crock and his old 'Roc

-----Original Message-----
From: Dave Ewing [mailto:rabbit16v@prodigy.net]
Sent: Wednesday, November 14, 2001 2:22 PM
To: Scirocco List
Subject: Re: O2 Sensor Works HOW? was: Fw: RE:solder vs. crimp


In response to Larry and Randy I can only say that I have never soldered so
I don't know for sure how true this is.  The instructors for these courses
are trained at Bosch and that is as far as I can tell you about how accurate
this information is.  Others in the class were surprised at this too but
since the reasoning behind it was so straight forward then there weren't any
questions.  Most of us in the class had quite a bit of experience on Bosch
F.I. systems and was still learning alot in a short amount of time so there
really wasn't a lot of time to ask questions about subjects that required
you to do very little to modify a habit, as in using a crimp instead of
soldering.  I can tell you that from a tech's point of view that the only
reason I have never soldered is because the sensors come with crimps so I
never questioned it.  Plus, the only other way an O2 sensor comes is
complete (from Bosch) so there shouldn't be any crimping or soldering at
all.  As far as how to test?  Don't know.  If your system is working
correctly, I would mess with it.  I know that isn't some kind of profound
insight but that's all I can think of right now.  HTH!!

Dave

> Makes no sense that the O2 sensor's designers would have it sampling
> atmosphere through an electrical wire (even if that could be done, which I
> doubt) when a simple port in the sensor's body would suffice.  Also, why
> would it need to sample atmosphere at all?  Within a few tenths of a
> percent, the concentration of O2 in the atmosphere is a known constant.
> I'm with you on this one, TBerk.
>
> Larry  sandiego16V
> old (anal) crock and his old 'Roc
>
> -----Original Message-----
> From: T Berk [mailto:tberk@mindspring.com]
> Sent: Tuesday, November 13, 2001 9:25 PM
> Cc: Scirocco List
> Subject: O2 Sensor Works HOW? was: Fw: RE:solder vs. crimp
>
>
> Dave Ewing wrote:
> >
> > Totally missing the point.  Solder all the wires you want, even use pipe
> > solder, I don't care, I just said that the wires to the 02 sensor need
to
> be
> > crimped as per Bosch.  This has nothing to do with strength or type of
> > solder or any other wires in the whole car, just the 02 sensor wires.
> This
> > is why the generic 3 wire 02 sensors that you can get from Bosch have
> > the crimps on them and includes a note on what to do.  HTH!!
> >
> > Dave
> >
>
>
> Is the WIRE really adding value via exposure to outside air  OR  is the
> O2 sensor built with little ports or holes that allow for the sensors'
> element to have an Exhaust vs Atmosphere reading?
>
> I have trouble with the idea the WIRE needs atmosphere exposure. Don't
> believe it.  It's my conjecture a crimp on is easier and makes economic
> sense.
>
> TBerk
> sometimes Head = Knuckle, sometimes just Hard.
>
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