1993 ABK in basic position — how?

Hello dear target group, first: Yes the topic, how to drive the motors into the basic position I read. For the ABK is described to describe the channel 0 of the adaptation. Unfortunately, this is only half the truth. Channel 0 deletes the learning values. In the ELSA-WIN, however, the channel 1 is still described. Here the motor is to be moved into the diagnostic mode. For this purpose, it should check its vital values, such as activated carbon filter valve, throttle position, cooling water temperature etc. and Then jump into the diagnostic mode. The problem with the story: My ABK doesn’t seem to know channel 1. Message is “Not available”. I get the message on the hand scanner and literally in the VCDS 908. I wanted to try it out with an old VAG-COM, but the 311 only seems to work with the cheap interfaces, at least not with my car-intern interface. Why do I want to do this? Only in diagnostic mode the ABK sets the ignition time to 6° before OT.