im doing a boost leak test on my passat and im having a hard time understanding whats going on with my piping. when i did it last nite i connecting the tester to the intercooler inlet and ran it at 9 psi through the intercooler and throughout my motor! i found i have a vacuum leak and will be getting the part to fix it tomorrow. im doing one again but the opposite way by hooking the tester up to the inlet to the throttle and disconnecting the turbo outlet and plugging it! i am trying to figure out why the air is coming out of my intake! the only source of air going to the air box is the diverter valve piping! i have the green spring in and it says its good up until 15psi! why would the air be coming out my airbox???? does this mean my seals in my diverter valve are bad? i used mobil synthetic grease to service and im not leaking anywhere throughout the piping! its all coming out the airbox! if someone could collaborate and explain what might be going on it would be appreciated!