[Krieger]

If you're using the Hallman ES yours might be assembled incorrectly like mine was.
When I first got my Hallman ES MBC it allowed the turbo to spool quickly but never got much higher than 7psi with the adjustment screw almost falling out or all the way in.
Blowing through the pressure side while turning the knob gave no results so I opened it up to find the piston had been installed in reverse so that the adjustment screw didn't place any pressure on the piston. I turned the piston around and found that with the screw almost falling out it was set around 16psi not good for the lowest setting so I found the best solution was to grind that little piston peg in half. Now I have complete control and can easily adjust from wide open to as high as I like with the adjustment screw in a pretty good amount of the way.
If the peg was in wrong you would get quick spool, but not really any much more boost than stock. If the peg is in right your lowest setting could be 16psi like mine was. If you have it installed backwards things are not gonna be good for your motor.
Side exit on Hallman ES needs to go back into the #2 solenoid where the cream colored pipe went. Cream colored one goes into the barb parallel with the adjustment screw.
If its hooked right and it goes past 15 really quickly with the screw all the way out then you need to grind that piston peg in half.

Remember if boost seems to be climbing out of control just lift the gas pedal quick, pull over, and re-adjust.

I lit my engine light after wheel spin and sitting around 3k rpms in 3rd the other day. Might be the computer getting pissed about not being able to lower boost when the trac control kicks in. I Reset it and lowered boost a little and haven't seen it since.

Good Luck