I replaced coolant temp sensor with new one from vw dealer (i even checked the
continuity of the old and new sensors: the new one is tiny 100ohms higher than
the old one) I also sprayed the idle stabilizer valve with carb cleaner.
        RESULT: 2000rpm cold/1200-950rpm hot and still hesitate during HOT AND COLD
acceleration. (with old sensor: 1200rpm cold/900-950rpm hot and still hesitate
during COLD acceleration)

Should I return the old sensor back in?  I will look into ignition timing
tomorrow... Any suggestion and input?

James
88weekender
anaheim, ca