ok i have and hks evc EZ that used to work now its not. i had the motor re-built over the winter and before that i could turn it up and down, now its stuck on 12-13psi. the instructions say to make sure the stock boost solenoid is unplugged but not sure where thats at, and idk if my builder hooked it back up by mistake ive just now finished the break in period so just now realized it. I have also hooked up an mbc and still no luck with controlling boost:1zhelp:. If anyone's got any ideas i would appreciate it.