Have a look at replacing the rods that actuate the swirl flaps, the ends of these wear and the small amount of extra movement will cause the problems you are seeing. I replaced mine recently, easy job to do and about £30 for the parts. Have a look at my build thread linked in the signature .
If you are looking for somebody to make mapping changes to the car I can strongly recommend Rick at Unicorn Motor developments who mapped my car. He is in Stockport so not too far to go.
Karl.
If you are looking for somebody to make mapping changes to the car I can strongly recommend Rick at Unicorn Motor developments who mapped my car. He is in Stockport so not too far to go.
Karl.