Could be a bad N80. When the purge pump opens, it allows fuel vapor to enter the intake, thus displacing air and enriching the intake charge. This could cause most of this codes if the N80 is stuck open. Just a thought. Best of luck!
A forum community dedicated to all Volkswagen owners and enthusiasts. Come join the discussion about performance, builds, modifications, classifieds, troubleshooting, maintenance, new releases, and more!