Boosting Problems at 12psi 2nd gen 3sgte, not fuel cut, no engine light either Options

[eggman40]

Hello everyone. Today i finished installing my dual stage boost controller. It works really well in the sense that you can toggle between two set psi at the flip of a switch. I left my low boost at 8pounds and it ran fine. Then i started setting the second boost contoller by trial and error. Basicaly make a run, look at what im running then turn it up.
My goal was to have it at 13psi, 9,10,11psi worked fine, but when i got it to boost at 12psi on the freeway, i heard some kind of sputtering of air in the engine bay. Not fuel cut because i remain at 12pounds(and i installed a fcd black box) but the car wants to keep making more boost but it sounds like leaking air from somewhere. Symptoms of a boost leak i know but i have no idea where it might be coming from. Earlier this week i had a bar and plate fmic installed with a hks BOV (atmospheric) and all the couplers feel tight. Any suggestions? has this happened to anyone? thanks ahead of time for any help

[Defgeph]

Change your cap, rotor, plugs, and wires. Your problem will go away.

Go to toyota and buy all the ignition parts.