Hello, i just got my car back after 3+ months of it being down. came across a problem tonight on my way home. In first though fourth i get 25 psi and holding good. i have a grimmspeed boost controller. I'm not a tuner but i was told that they didnt do a fifth gear run. In fifth gear i get a brickwall at 15. you can hear it wants to go but dont. Is this a tuning issue. every other gear works great.

 

Anyone?

 

Go see in your main boost map.
Boost desired engine and waste gate duty cycle at set for each gear.
maybe the setup in 5th gear had not been modified and your still bosting like stock at this gear...