i have a f22 turbo in my accord on 10psi, i noticed today on the highway,well in 1st-3rd gear i only build about 7-8 psi and 4th-5th i build the full 10 pounds, anyone know what this is. also i have a f22 tranny if this matter

 

Sounds like a potential boost leak. Build a boost leak tester and find it. Good luck.

 

Give us some more info on your setup. Definitely sounds like either boost leak or pre-turbo exhaust leak. when do you see 7-8 lbs in 3rd gear?

 

what type of EMS do you have