i have a 98 2.8 quattro. for the first 10 or 15 mins i drive it it cuts out real bad. it does it a idle and then real bad up to about 35rpms and then its a little better. im having to manual shift it to keep the rpms up. i ran a diagnostic on it and all it came up with was a bad o2 censor. would that cause this problem? i remember on my mustangs i would just remove them when i did the exhaust.