CRAIG HAYTER

Hi guys wondering if you have any advice please i have a a6 1.8t on a 2001 plate and its not turboing no reak either no funny noises car goes perfect but a bit sluggish going up i have been told it could possibly be a solenoid change over valve i went to audi they also said its a possiblity and i got my mate barry to put it onto a diagnostic machine i did today it could be the soleniod change over valve sensor what do you's think have you's heard of this before not wanting to go buying a load of stuff that does not need changing
cheeRS fortaking the time to read this and all comments will be taken on board