My mechanic and I have been working on my engine temp problem which I
didn't have by the way until I installed my CHT gauge.  Suspecting that
maybe my engine was running to lean and therefore hot we started checking
and found with the o2 sensor connected the system was to lean at 2000 plus
rpm.  Disconnected it is much richer and almost out of spec.  Here is my
mechanics explanation who is by the way a very reputable mechanic in my
opinion here in Santa Barbara County:

When co is set to factory spec. by the book you disconnect o2 sensor with
engine off, start engine and adjust as necessary then shut off reconnect o2
restart engine and recheck co, it should stay with in spec.  If not other
causes of this problem could be a vac leak, timing, fuel psi, fuel
injector, and head sensor, which all check good. Your co goes too lean at
cruise speeds, I have herd of other shops installing a resister in the o2
wire connector to bring the co back to spec with all systems operating. We
need some leads on the resister or if this is due to something in the
electronics we may be missing. Note this is a California version with
electronic ignition and o2 sensor system. most other models have points and
no o2.

1980 Westfalia Vanagon FI all stock engine.

Any idea's list?

Sincerely,

Dennis R. Bergey
Systems Manager
Santa Barbara Museum of Art
Santa Barbara, California
Web:www.sbmuseart.org
AOL IM : Mr Bergey

The people have spoken.  We just don't
know what they've said yet.

President Clinton.  7/8/2000.