MBC acting up??

[Luderacer14]

Ok, I'm running a garrett28 with an internal boostcontroller. When i first put it on, it ran up to 15psi, now the highest it will go is 8 psi. Whats up? It's a turbonetics MBC and I don't get it!! Anyone have any ideas?

[240SicknessX]

boost leak? have you checked all your ic piping? and dose the 8psi come on at the normal time that your 15 psi came on at? inspect the silicone connections also for rips or tears.

and the car idels fine?

for the record you have it hooked up like this - boost source> mbc> wastegate.

[Luderacer14]

Car idles fine, but sometimes it's jacked up after driving hard.

[240SicknessX]

describe this "jacked up feeling"

jumpy throttle responce?missing?

[Luderacer14]

The idle will go up and down for a few minutes, than the car will bog at higher rpms, like arounf 3.5-4.

[240SicknessX]

have you inspected the fmic piping? spray some carb spray on your connections, if your idel changes then you have a leak. a suttle or small leak can open up under boost.