R33 Popping During Boost

[GR33DY1]

Hey all new here

I just got an r33 gts25t and for some reason it's popping or cutting out originally when I hit high boost at times but today was popping even at quarter peddle in any gear and cutting out to the point of where the car starts slowing down dramatically. I think it's running between 7-10psi (not sure boost controller line needs replacing) just gave it a major service Belts, plugs the whole nine yards. Has stock turbo with inter cooler, manual boost controller, apexi ECU, turbo smart BOV just the usual... Can anyone help me please

[Nevastator]

Have a look over your cooler piping and make sure its all done up tight

[Ricky_Bobby]

Sounds like you may be running more boost than you think and the ecu is going into rich and retard . But it says your running a power fc, so not sure if thats even applicable now.