Lack of spike

[Ant168]

Hi guys,

Lately I've realised my car is not spiking at all.  I used to spike around 18psi as its a stage 1 remap on an AGU lump, it sits at -22psi at idle and holds boost at 14psi or so which all seems normal.  I've asked a mate of mine and he said it could be the turbo actuator or N75 valve playing up.  Every now and again, it will hit 18psi when floored but only when it wants to.  Can anyone shed some light please and how I could change the parts required.

Thanks,

[Dave_IOW]

Mine is doing this too, i have been round and checked all my intercooler system, changed N75 valve twice and am now replacing PCV system.

Can only wait and see if this solves the problem