96TurboAWD
15+ Year Contributor
- 78
- 5
- Nov 30, 2003
-
Parma,
Ohio
I am not sure if its a boost leak. I have a T-25 with a mbc at 15psi but when I start to boost it feels shakky and the gauge keeps bouncing. I just got a new Cam Angle Sensor and my Balance shaft belt snapped got that replaced and timing belt and so on. It runs fine until it wants to boost. Its at about 2800 where it acts up? What could it be except for a boost leak I can't find? 


i was going to say check ur ignition and all that, and check the plugs but u have beat me to it, bosch is garbage in our cars, NGK all the wayy