I have been having this problem since I changed to v3. There will be a boost lag after gear shift or when pressing tps to 100 fast. there will be a lag of second when the boost does not go over 150 kPa and then it spikes where it should go.
After looking for the logs I noticed that the same lag is in aux 5 which is controlling the boost solenoid. any idea why is it doing that, when the boost dc is asking for 90% and boost output is not disabled.
Here is a picture where you can see that all other nessecary things for boost is there but the aux 5 is not powering until 1-2 seconds. I am using audi oem N75 boost control solenoid.