30FE would probably not be from the solenoids. The vacuum between the WGA and solenoid should be about 5inHg at idle and hit 18-20 when trying to build boost. Vacuum between the pump and the WG should be at least 20 inHg whenever the engine is running. But if you see that after the solenoid, it could be one of them is stuck wide open.
E92 335i/6MT Dinan Stage 3: intercooler, oil cooler, intake, flash, exhaust, LW dual-mass flywheel.
Vishnu PWM methanol custom trunk mount, Diffsonline 3-clutch Salisbury custom diff, Ohlins Road and Track coilovers, Vorshlag camber plates, much more...
E28 M5 w/ buncha stuff, R171 SLK350