A ECM update wipes a tune?I think that you have the answer. What year is the car? The ECM needs a tune to be able to run on the higher boost pressure. I looked in my VIDA, I can not find the Volvo boost spec. Mabey someone else can post it here. I assume that the Volvo high boost cut out is 15 PSI. Are there any king of settings or adjustments to adjust the boost below 15 PSI to stop the limp mode for now? If you do the ECM tune and Volvo has to perform an ECM update, this will reset the ECM back to factory spec and erase your tune SW.