So now my blow off valve isnt blowing off???

[benarovi]

alright so i have my blow off valve teed off with the wastgate vaccum line and iv been using that ever sense i did the swap and no problems at all. i use the nipple next to the fpr vaccum nipple. then i put in my boost controller(teed off with same line with bov to wastegate) and thats when the bov started to not work. started to compressor surge but boost great and vaccum fine. so i took the boost controller out and now the bov still doesnt work. it doesnt blow off at all. I tightened the screw in and out and nothing changed. wtf can it be? it cant be the vaccum source cuz iv been using it no problems in the past. anybody who ahd the same problem as me can help me out or somehting before i decide to take it apart and lube it up.. lmk