Shut it POD...lol....... And it was worth a try, Ya lucky I let you have the crown..lol
All a bov does is to stop the turbo for stalling on a gear change in a Manual car....Or if you lift off the throttle.
The BOV is operated by Zacuum & + Pressure (well mine is) The Vacuum caused by the air flow being blocked by the closed throttle body helps pull the piston on the bov out. The Pressure helps keep it closed. Of cause mines only a £20 El Cheapo thing and by rights shouldnt work at all..lol
On an Auto the Boost is constant while accelerating through the gears the BOV Does nothing in this time. It only works if you jump off the throttle.... It make's COCK all differance where the air goes.... and if on the throttle the BOV might as well not be there as it does nothing.
So did ya get over boosting (Boost Creep) before you fitted a BOV because the overboosting can not be connected to the BOV at all
Im sure Saab makes a wonder full Turbo system.... Just sound like your was struggling..