Engine Stutter With Boost

[Speede]

I just installed a type-s yesturday, and an Amos Incorperated (homemade) boost controller. The engine idles fine but throws a check engine light, and when you get to 7-8psi of boost it stutters and locks the rpms. any suggestions.


Edit: other mods: uicp, injen intake - all parts on within the last month

 

[Zenja]

There is an air leak in the piping or vacuum hoses somewhere probably.

 

[Speede]

stutter was loose uicp, cel was unplugged bcs (p1104). yep.