Date: Fri, 28 Dec 2012 12:23:05 -0800
Reply-To: neil n <musomuso@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: neil n <musomuso@GMAIL.COM>
Subject: Re: O2 sensor type problem after replacing O2 sensor
In-Reply-To: <8CFB341C47CB06E-237C-61CF6@webmail-d173.sysops.aol.com>
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Here's some close up shots of the green coaxial O2 wire on my '88 2.1
I'm not certain it was causing an issue, but, it was pretty clear to
me that the slight bits of excess shield wire may have been shorting
to the inner "signal" wire.
3 images starting here:
https://picasaweb.google.com/musomuso/New1988Westy#5748856721901671282
I was able to repair this by cutting the wire back. I don't recall if
I used shrink wrap to help ensure longevity. I think wire movement is
what kills it over time.
Cutting into the loom can be a slightly hazardous (i.e. you cut
another wire) but is not rocket surgery. The connector(s) from the O2
should be long enough to reach even if the green wire is shortened.
Good electrical tape is nice for loom repair.
Neil.
On Fri, Dec 28, 2012 at 10:39 AM, David Clarkson <dvdclarksn@aol.com> wrote:
> One other bit of info that is worth mentioning is that I have an O2 sensor
> monitor that indicated that everything went completely rich when the problem
> occurred. It showed this type reading with the original sensor issue and the
> new sensor issue. My thoughts are that the problem might be with the small
> guage coax type cable that sends the sensor signal to the ECU grounding out
> from the inner sensor wire to the outer metal sheathing that I believe is
> grounded to the chassis. I had a similar problem with this cable once before
> and I believe that I cut a small piece off of the end and put the connector
> back on. Knowing that most types of coax cable will eventually fail, I am
> wondering if anyone has had a problem similar to this with this cable and if
> so where did you find a replacement. I believe that it is wrapped with the
> other wires in the main harness section that goes to the ECU so I would
> probably just run another piece that would be wire-tied to it rather than
> risk disturbing the rest of the original harness and causing a problem with
> another wire.
--
Neil n
65 kb image Myford Ready For Assembly http://tinyurl.com/64sx4rp
'88 Slate Blue Westy to be named.
'81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
Vanagon VAG Gas I4/VR Swap Google Group:
http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
