I recently had a PI 3200 stall put into my car. When I try to brake torque, the RPMS "bounce" about 400-500RPM. As soon as I reach 3,000, the bouncing begins. Up, down, up, down, up, down, etc... Almost like a VERY slow 2 step. This makes it impossible to maintain a consistent boost level prior to launch. Anyone have a clue what's going on here? FWIW, traction control is OFF.