ok i have owned my a3 1.8t 2003 aum for a month now and when under load boosting you can hear it wooshing (bosst leak) went to a garage and it thrown up a code... 17705 - p1297, turbo/throttle valve connector pressure loss. so just had a boost leak test where they pressuriesed the system and no leaks! so they sent me on my way and booked in to go back and leave it with them friday. (when i drove the car after there was a bit of white smoke from exhaust while boosting?? is this due to because they pressured the system?) its not smoking or anything now by the way! so anyway.. i started thinking could it be something opening when under load like turbo going to actuator pressure or a faulty n75 valve? havnt got access but any ideas or pointers would be great! no mods at the moment just standard! cheers tom
