quick ? about BOV

[214kka-et240sx]

does this has to be a vacuun line, or is it has to come from the turbo compressor outlet. and wat does that part do to the bov

[ultimatuc]

you only need to run manifold vacuum to the top fitting. (throttle plate closes...........applies vacuum to the valve, opening it)

[j-z]

for any bov, you have to take your vacuum source from behind the throttle body. if not then the bov will not work. just 'T' into you fpr vacuum line and youll be good. and the thing on top adjust how hard or soft you want the valve.