Having another problem with the B4 at the moment
Drives fine till about 3500rpm then once changeover starts car will sometimes surge.
If it doesn't surge then power drops as if ECV is opening. But the kick from the secondary never comes on.
Max Psi is between 6 and 10. Lower than normal.
We've tried quite a few things and found nothing.
We have a laptop and are monitoring the ECU live as we drive, but we don't know exactly what to look for, if
anyone does please let me know.
Any suggestions at all would be appreciated
Thanks Guys