Have you had any of the Vis Valves off?
Possibly a air leak after throttle body?
Do you have a catch tank fitted?
Possibly a air leak after throttle body?
Do you have a catch tank fitted?
Were the Gaskets inplace on both valves?I bought the car with the issue. I have since had the VIS valves off but it hasn't got any worse / better.
Also I don't have a catch tank fitted.
Thanks for the help though.