Thanks Stuart and others for your feedback on this problem.  My 02 sensor
is still stuck but I'm now thinking it's not the problem (at this point in
time -- I'll have to deal with it soon so the good advice will be used
then).

I'd simply guessed my poor-performance, poor-gas-mileage problem was due to
a failing 02 sensor and launched into replacement mode.  When the stuck,
existing 02 sensor pushed back, I tested the voltage generated by it.
Changes from 0.2 to 1.0 as engine warms up -- I think that's within spec so
it seems doubtful that is the problem.

I went back to basics and changed out the spark plugs, which hadn't been
replaced for a couple of years and looked black with carbon upon removal.
Took van for a spin and it now seems fine.  Could it be a simple as that or
can I expect the plugs to become fouled again and the problem re-appear?

I've since come across this write-up about adjusting the AFM
<https://www.thesamba.com/vw/forum/viewtopic.php?t=356377&start=0&postdays=0&postorder=asc&highlight=&sid=46c674380dc6eea856a8f220256876f0>
on the Samba. I'm going to check the idle mixture setting per that
summary.  I've done most of the tests you can do with a multi-meter on
other Digifant components (AFM, TPS, Temp II sensor) and they seem okay.

It still could be crap in the fuel tank restricting fuel flow
intermittently.  I did a fuel delivery rate test and got about 750ml in 30
seconds, but the fuel pump still whines most of the time so maybe it is a
fuel supply problem.  I haven't tested the fuel injector spray patterns as
yet.

Rick

On Sat, Feb 10, 2018 at 11:28 AM, <stuartmacm@gmail.com> wrote:

> BTDT. Is this a 1.9 or 2.1?  Mine was a 1.9 and either the bung or the
> sensor (or both) had become oval. It would turn a fraction of a turn and
> that's it.  Took it to a muffler shop and when they gave up they cut it out
> and welded a new bung.
>
> Stuart
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of Rick Cooper
> Sent: Saturday, February 10, 2018 10:20 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Is there anybody out there?
>
> Trying to remove very stuck O2 sensor.  Neither my propane torch nor PB
> Blaster have worked so far.  Patience and persistence being tested.
>
> On Sat, Feb 10, 2018 at 8:23 AM, Stephen Grisanti <bike2vcu@yahoo.com>
> wrote:
>
> > Cleaning out the garage and finding some Westy-related things, but not
> > the binder full of receipts yet.
> >
> > Stephen
> >
> > Mobile
> >
> > > On Feb 10, 2018, at 11:03 AM, Steven Johnson <sjohnso2000@GMAIL.COM>
> > wrote:
> > >
> > > Cleaned out the clutter in the 91 Westy from my last trip out to
> Raleigh,
> > > NC.  ManI accumulated a bunch of crap.   Found some little things I was
> > > looking for too.    Also,  set up the new Kenwood
> > > head unit that has HD radio built in.  Yes,
> > > I still listen to radio.   This allowed me to
> > > remove the JBL external unit clutter from the dash.
> > >
> > > Sunny and spring like out here in Sacramento.  Sorry for those of
> > > you In the frozen areas the the country..
> > >
> > > Steven
> > > 91 Westy
> > >
> > >> On Feb 10, 2018 5:44 AM, "kenneth wilford" <kenwilfy@gmail.com>
> wrote:
> > >>
> > >> Working on getting lithium battery to work in a Westy as the second
> > >> battery.  Hopefully have a kit to sell soon.
> > >>
> > >> Ken Wilford at vanagain.com
> > >>
> > >>> On Feb 10, 2018 8:33 AM, "Pete O" <pnoceanwesty@gmail.com> wrote:
> > >>>
> > >>> Cleaning up 14" of snow in northern Indiana.  Thinking of the
> > >>> buses sleeping up in the barn. Hopefully a different picture 60
> > >>> days from
> > now!
> > >>>
> > >>> Pete O
> > >>> '79 Westy "Aardvark"
> > >>> '87 Westy "JoesVan"
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>
> > >>>
> > >>> On Fri, Feb 9, 2018 at 8:03 PM, Christopher Schimke <
> > >>> christopher@t3technique.com> wrote:
> > >>>
> > >>>> Just curious.because I haven't had a message in quite a while.
> > >>>>
> > >>>>
> > >>>>
> > >>>> Thank you!
> > >>>>
> > >>>> Christopher
> > >>>>
> > >>>> T3 Technique <http://t3technique.com/>
> > >>
> >
>
>
>
> --
> *Because **I want my vote to count.*
> *And I want my neighbour's vote to count too. *
> https://secure.fairvote.ca/en/bc-referendum-vote-pledge
>
>

--
*Because **I want my vote to count.*
*And I want my neighbour's vote to count too. *
https://secure.fairvote.ca/en/bc-referendum-vote-pledge