ive had this problem for awhile. the car only boosts in 2nd after starting up for the 1st time during day. It boosts full boosts, for only that first part of the day. other than that, its game over after that in any gear. sometimes you get like 5psi, sometimes before, sometimes after. ive had this problem for over 3 months. people tell me that the turbos blown and all along down that line but now it does this. i tried to fix it. it makes me think that arent blown if its doing this. it got the point where i gotta single turbo upgrade thats not yet installed.