Took the car for a drive yesterday and was boosting fine. Tried to accelerate in 5th gear doing about 70 at the was no boost. Pulled the car over to see if any pipes had popped off, couldn't see any but noticed the dump valve was stuck open. took the car home and put the original valve back on. When i took the car back out the car still had no boost. There was no smoke or any dodgy noises coming from the car. Has my turbo gone or could i have a problem with my actuator or wastegate? Any ideas?
cheers
scott