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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