Very interesting results good to know
Oh also connection can go bad if sodered spot goes bad with time

Sent from my iPhone

On Nov 27, 2008, at 8:30 AM, Allan Streib <streib@CS.INDIANA.EDU> wrote:

> Ken Wilford <kenwilfy@COMCAST.NET> writes:
>
>> Mark, of course there is a laundry list of things this could be,
>> however let's start with the usual suspect which is the oxygen
>> sensor.
>> Unplug it and see if this helps.  You will see a largish green wire
>> that is near the ignition coil with a single spade plug on it.
>> Unplug
>> this from the black wire that goes to the oxygen sensor and see if
>> your symptoms go away.  If they do and the oxygen sensor hasn't bee
>> replaced then I would replace it.  The van will run fine with this
>> unplugged forever but you won't get as good fuel mileage as you would
>> if you have a good one hooked up.
>
> The O2 sensor could be my problem as well -- another suggestion was
> the
> AFM or its connector.
>
> In my case I may have harmed my O2 sensor when I used some high temp
> RTV
> on the manifold "donut" gasket, because I just could not get it to
> seal.  I later found out that RTV and O2 sensors don't play nice
> together.  I did not use very much RTV, just a film to get the perfect
> seal, but maybe ANY is too much.
>
> Allan
> --
> 1991 Vanagon GL
>
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