Hi guys first post here I have recently bought a 2004 a3 2.0 tdi. I have full service history. It also has had a new turbo fitted and did limp mode for a couple of weeks after but got a sensor put in and now it drives fine. my problem now is this code it keeps throwing up even after resetting it. the code states p0236 turbo charger / supercharger boost sensor A circuit range / performance. Thanks for any help given it is highly appreciated.