Originally I thought i had a problem with a coil pack as car felt like it was intermitently running on 3 cylinders. since getting VCDS i have a fault code:
17956/P1548/005448 - Boost Pressure Control Valve (N75): Open Circuit
would this be causing limp mode, the car really runs rough/ shakes on acceleration. After stopping for a few minutes and restarting it runs normal. Is limp mode like this?
Thanks in advance