So if I am on a spirited run and release the throttle quickly on my 08 RXTX I get a buzzer for a few seconds. No codes are displayed while buzzing or after, nothing ever seems wrong. I do have an ET137+4 and no blow off valve. Thought maybe the pressure wave from boost and closing throttle could be the culprit. Not sure how the pressure wave would cause a buzzer warning though. Any thoughts? thanks