R32 Boost Issues

[freestyleMX]

this has probably been covered before but i cant find anything covering my specific issues..

have a 32 normal mods fmic, turbo back 3inch exhaust, elec boost controller (gizmo ebc), 25 neo turbo running 13psi

the other nite went for a drive boosted fine.

the next day it wasnt hitting 13 psi but would still come on boost good and hold say 11-12 psi then when u set a higher setting on the boost controller it would hold a higher boost. so when set to 13psi sometimes it would hit that boost and now sometimes it would only hit say 10-11psi.

then today when i went to hit boost after warming it up it spluttered and missed then backfired with a cloud of black smoke (so would be fuel) then after that was boosing again???

some help would be greatly appreciated!!

my ideas are...

-ebc

-actuator

-fuel pump