"D. Bell" <news.DeleteThis@REMOVEdtechutah.com> wrote in message
news:BD2Nb.8181$1e.8094@newsread2.news.pas.earthlink.net...
> Ok, thanks. Guess I gotta get it replaced. Anyone know if this is
> something I can do myself?
All it really is is a sensor that's screwed into your exhaust system. I'm
not sure where it is exactly on your car, but on my '91 GTI it was in the
exhaust manifold. Some cars have it just in front of the catalytic
converter (and some cars have two sensors instead of one...don't know if
that's the case with your car). The main caveat it that heat may have made
it very difficult to unscrew and it might be pretty well bonded to the
exhaust system and might take brute force to unscrew it. You would use an
open-end wrench to unscrew it. I think the size is 22mm but don't quote me
on that. You'd unscrew it, follow the wires to a connector, undo the
connector, install new one. It's theoretically simple. What makes it hard
is if you don't have the right size wrench, if you don't have easy access to
it (can't swing the wrench or have a hard time reaching it), etc...annoying
things like that.
When installing the new one, put high-temp antiseize on the threads (but not
on the main part of the sensor or it won't work right). Your local FLAPS
will have small tubes of antiseize for this sort of thing for just a few
bucks.
The sensor is a Bosch unit. Some folks have had luck using a generic Bosch
one (for $50 instead of $150) that just lacks the VW wire connector but is
otherwise the same, in which case you'll need to splice your old connector
to it. Some folks have found such a sensor at Ford dealers (Ford apparently
uses the same sensor with different wiring).<!-- ~MESSAGE_AFTER~ -->
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