OK, I have disconnected the O2 Sensor and drove up the Hill without any
problems, but the Vehicle was still running at around 2000 RPM without a
gear in. When I connected the O2 Sensor the RPM increased to aroun 2800 -
3000 RPM and was beginning to jump up and down anywhere from 1800 back up
to 3000. I did not at this time Disconnected the Idel Stabelizer Valve too.
This time i did not have any Stalling while driving without the Sensor.
I also was overlooking the paperwork i received with that van and it had
all the repair's to it listed with it.The O2 sensor has been replaced in
12/99........could it be broke already again ?
I will list the major replacements below so the list can see what has been
replaced so far.
08/12/99 AC Diagnostic Service & Test....refill 1 pound of Freon R12
Mileage 107463 Total $ 97.07

08/30/200......Replace Air Flow meter, replace coolent temp sensor
Total$ 353.85  ( recommandation by Tech. needs Idel speed control repl. )

02/24/99 major inspection on Brakes replace all brakes, overhaul
cylinders,replace front wheel bearings etc.
Total $ 774.13

09/01/99......Replace spark plugs and wire harness, fuel filter,airfilter
Total $ 287.00

12/02/99 replace O2 sensor(remarks,found fuel in oil from defective O2
sensor)
Toatl $ 211.25

11/08/99......replace odometer,replace new heater level,switch,knob,replace
O2 Sensor,headlight adj, install 4 new tires.
Total $ 991.34

So as everyone can see, the O2 senso has been Replace at least  two times
in a short periot of time. The former owner keep pretty good record of his
van, even all the oil changes. I listed just part of the Maintance list i
have.
No my question is ...how often does the O2 sensor needs to be replaced ?
It got already replaced 2x in 1 year? Of course the prior owner went to
different shops each time, so maybe he just got taken ?
Thank you List.
Dieter
1986 vanagon GL 2.1 4 speed.
Branson ,Missouri