my car has been so good to me for over 4 yrs. However, my first problem arrives. I have been running 1.00 boost as measured by the power fc for about a yr now. Histyorically i would see 1.02-1.06 peak then she would level off to 1.00 and would hold rock steady thru all gears. Tonight i was only seeing .92ish peak and additionally she wouldnt hold and immediately would start to drop....by readline i would be down to .80ish. My autometer boost gauge confirmed that right when secondary came on i would see close to 15psi then back down to 12psi as i ran thru the rpm range. Any one have any clue as to what this can be? Do i have a leak or are my twins getting tired from the 15psi. The car and turbos have 44k on them.
Like i said i have been running 15psi for about yr but i wouldnt say i have that many miles at this high of boost maybe 6-9k. Probably on the lower end.

my power mods are..full exhaust with mp, intake, power fc, 1300injs, m2 med intercooler and kdr tune. She put down 340 rwhp @ 1.00 boost.

Thanks for the help!

 

problem solved....the vacuum line running to my abv was loose. God i love 15psi!

 

Nice work