My TTA also has a BOV (Greedy)
What I want to know is; if by backing the screw out and thus reducing spring pressure boost pressure also drops.
My car shudders and I hear intermittent bursts of air escaping that are in sequence with the shuddering. Only happens when backing off the throttle.
I am guessing the BOV is trying to bleed pressure off but cannot do a good job because of spring tension.
What I want to know is; if by backing the screw out and thus reducing spring pressure boost pressure also drops.
My car shudders and I hear intermittent bursts of air escaping that are in sequence with the shuddering. Only happens when backing off the throttle.
I am guessing the BOV is trying to bleed pressure off but cannot do a good job because of spring tension.