Ok was mulling it over in my head all day. If it is the wastegate flapping. Then that means their is pressure getting to the actuator. At a long shot i pulled of my stock boost solenoid and blew into either of the ports. No matter which port i blew into alit bit would escape out of the other one. Plugged green plugs together under dash, turned car on but did not start it and whilst the solenoid was cycling i blew shit loads of contact cleaner into the ports until they sprayed out the other port. Turned car off, disconnect solenoid and tapped it on the bench to get the excess cleaner out, and a small grit of of something came out . Now when i blow into the ports i cant blow through so it sealing properly now. I have re-installed it but wont be able to go for a drive till tomorrow. Heres hoping this fixes the problem... Sorry for all the comments, i find it helps when i document stuff lol.

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The one perkent...