In the FAQ it says
01-Engine: -- KWP-1281
VCDS works well with all engines available in the U.S. and most engines that users have tested in overseas markets.
Idle Speed Adaptation:
With engine warmed up, at idle:
[Adaptation - 10]
Enter channel 01
Enter an adaptation value between 124 and 132
(May require a Login of 01283 or 11463, depending on year or model)
VCDS - didnt want to go with channel 01 and when I changed it to channel 02 it seemed to be the tickover setting. First off VCDS didnt want to accept the request but then asked if I was really sure so I cancelled out of it all and scampered to ASN to see what other folks have done.