Just a follow up to the previous post. The oxygen sensor voltage seems to
be swinging between .1-.7 volts with the engine warmed up. Thanks for any
help  that you can offer fellow vanagonauts.

David

In a message dated 5/26/2009 10:34:31 A.M. Eastern Daylight Time,
Dvdclarksn@AOL.COM writes:

I'm  having an intermittent rich running problem with my 90 2.1 liter
Westy.
This was the same symptom that I had that was fixed 13 mos. ago with  a new
temp  II sensor. This has been replaced with no effect. One  other
interesting thing  that I noticed when attempting to install a  wire to
feed an oxygen
sensor  monitor was that just connecting an  additional wire to the sensor
causes an  immediate rich running  condition. I had a problem this morning
when the engine  was started  cold with running rich also. Am I looking at a
problem involving   cleaning up some grounds again. I'm thinking that I may
also
need to test  the  voltage coming from the sensor and also at the ECU. Any
ideas  towards diagnosing  this problem would be greatly  appreciated.

David  Clarkson
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