Thank you both for the response(s). Was not aware of the O2 sensor either. I wonder if this feedback system will help reduce the possibility of intake manifold clogging?
Just a side note, they do make "dummy" O2 sensors for at least my GMC pick-up. It basically tells the computor "all is well" even if no catalytic convertor is in place. I wonder if this is an option for trying to get around the problem.
BTW, the latest version of Vag-Com seems alot easier to use, nice layout, nice features, great product. Thanks again, Kevin