Charles,

Attached are some files for assistance in diagnosis of fuel injection
system difficulties.

Disconnect the O2 sensor and see if the problem goes away.  If so, it is
either the O2 sensor or its wiring.  You can run this way for a day or
two to compare.  Wiggling the wire is no test of the O2 sensor.

These files will give you lots of info on particular symptoms and the
sensor or other part that is likely to create that symptom.  It is a
good bit to read but it is very good.  These are things I have
downloaded from the list or searched out of its archives.

Sam

--
Sam Walters
Baltimore, MD

89 Syncro GL, Zetec Inside
85 Westy Weekender
85 Mercedes Benz 300D Turbodiesel - to become veggie oil powered

All incoming and outgoing email scanned by
automatically updated copy of Norton AntiVirus.