Hello All,
I have noticed recently that when I am crusing at highway speeds (mid-rpms) there is a minor surge that can be felt in the car and it can be seen on the turbo gauge. I am running an MPS tune but I am otherwise 100% stock. There is no CELs on or anything else. Acceleration still seems smooth, it is only noticed when maintaining a certain speed.
Anyone have any ideas? The person who tuned the car seems to think it indicates a bad bypass valve, but wouldn't that only be noticed at higher RPMs?
I have noticed recently that when I am crusing at highway speeds (mid-rpms) there is a minor surge that can be felt in the car and it can be seen on the turbo gauge. I am running an MPS tune but I am otherwise 100% stock. There is no CELs on or anything else. Acceleration still seems smooth, it is only noticed when maintaining a certain speed.
Anyone have any ideas? The person who tuned the car seems to think it indicates a bad bypass valve, but wouldn't that only be noticed at higher RPMs?