heres the problem, i have mode A set to 18 psi and mode B set to 12 but for some reason i always go past like to 21 , 22.9 anyone have any thoughts on this, also before i got the boost controller i would overboost when ever i tried to get on it. i guess what im trying to say is why isnt my boost controller keeping my boost down where its suppose to be?

You need to go into the setup and calibrate it, refer to your manual for help.

Cause I cant remember exactly.