ok I am pretty new to the europe car thing I have worked on hondas and just about everything else over the years and I just picked up a 01 a4 quattro with the tiptronic tranny had a blown motor in it melted two of the pistons. anyways I got it up and running it has no check engine codes and drives pretty good. but I cannot for the life of me get three readiness monitors to set. 02 sensor cat monitor and secondary air pump, I have repaced thus far the cts,maf,front and rear o2 sensors and the turbo because it as shot. I have vag-com and tried to get them to set but with no luck, the o2 sensor just keeps saying test and never sets or fails, the air pump cycles but never sets, and the o2 test don't set either, what am i missing? the vw dealer has had the car three times and can't get it to set either and suggested taking it to a audi dealer, please guys help a newb out!!!!!