I'll start with the basics....
2006 STI with SPT cat back/Invidia DP/Perrin UP-pipe/Perrin equal length headers/Perrin ultralight crank pulley/Walbro fuel pump/SPT intake/COBB accessport V2 with custom tune via XX Tuning.
So, recently I've been having boost issues. Randomly-in any gear I'll lack full boost(loss of 8-10 psi) under full throttle. If I pull over and turn off my car and start again it usually resolves the issue. This morning it did not. I'm not sure if I'm having a fuel delivery issue or a tune issue or something all together different. Keep in mind I've had all these mods and my tune for 4 years now. No changes to my car to create this problem. ANY help would be greatly appreciated. footnote: MY AP is currently non-functional. I need to send it in to COBB. I'm hoping all I need to do is re-boot my tune map but I doubt that is my problem.
boosthungry & confused