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Discussion Starter #1
I have a 97 9000 aero manual. I have a boost control valve to adjust the turbo boost. When you open it it gives you a lot more boost when you close it a little bit it gives you less boost. Now it doesn't matter whether its closed or opened it gives the same boost. I removed the hose from the apc (the hose that goes to the wastegate) and boost does not change. The boost it gives is not bad but I had more boost before when I want it by adjusting the valave. Can someone help me out on why this happened?
 

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Discussion Starter #3
I have the valve on the hose between apc and the wastegate. It worked before but now I can't adjust it just stays the same
 

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u sure the mbc isnt broken from inside?? what mbc are you using, if ur using the one from 3 bar racing make sure the small hole on the bent side isnt clogged
 

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Discussion Starter #5
I disconected the mbc and it had no effect on the boost The hose from the wastegate is unplugged from the apc and hanging.
 
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