Ive just cleaned it with contact cleaner and checked the little wires around the edge but they still look like they are soldered ok. Will try it later. There is some carbon swarf in there like off the motor brushes. When i start the car it moved to a position then sort of twitches about a bit then just fully opens wastegate resulting in flashin plug light and car been as flat as a witches tit. I have a vw transporter t5 and when that went in limp(overboost) it was still very driveable but this st is dangerous. It struggles to pull off and slightest incline results in 1st gear. Thanks for the help guys, ill keep you up to date on it