ok here'as what i'm thinkin... installed a new bv it make the woosh sound but not as pronuced as i expected... my boost was toped out at 1.3 now it's 1.1 car will no longer break loose in 2nd gear.... so i thinkin i have a leak in install... a drive to work shop came up checked it , it's both banks air injuction code .. isn't that only in effect on start up???woiuld it affect my bost or do i have the bv set wrong??

 

sound would be louder if higher pressures were expelled. sounds like either a leak or bov isn't holding the pressure. is it adjustable?

yes believe the bank 2 is for closed loop (idle and emissions) think most flashes turn it off somehow to abate CEL lights anyways.

it's possible some of the brittled hoses cracked when installing. Check the hoses around the F hose, in particular the ones that go off the orig DVs then T off and the one that runs around the lower F hose to the TB splitter. these are a series of white hard hoses connected to black rubber soft hoses. black rubber ones harden from heat.

 

you should have bought the Forge Dvs from Vivid... pressure test the car and call it a day... the more hands are in your car and the more often you change things around you increase the chances of messing things up... learned that over the years,...
sometimes its not worth messing with what already works.....
the only way you will see if everything is ok is if you pressure test the car from the turbos... not the TB...

 

Actually we have our own line of Diverter Valves as well through Agency Power besides the single BOV unit.

Remember I run 2 of these BOV's on my 997TT with no boost issues at all.

 

had forge from the start .. when i change pipeing to the turbos performance increased but that great whoosh sound disapeared , i changed to evo still no whoosh went to bv and the whoosh is back but not as loud as before . still i getting 1.1 bar

 

Tighten the top of the valve adjuster down.

 

will try how much ?