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Cant control boost

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Flybiyou

20+ Year Contributor
304
3
Apr 8, 2003
somewhere, Illinois
Whats up everone have a problem that maybe one of you guys can help me with. I had a manual boost controler on my car befor and tried to lower boost with it and it never did I could only raise it. I bought a greddy profec b 2 and tried the same thing to lower boost and hold it. Its not working no matter what I always boost 21 22 pounds I can turn the profec to 1 and it goes right to 21 pounds I can control the gain but not boost. I dont know what to look for for trouble shooting and the only thing I can think of is the wastegat is bad. Any ideas on this.

Thanks
AJ Mods in profile
 
This is all very confusing, you need to put more effort into this. ;) Tell us separately on what happens to boost with the MBC then the EBC. Here is some other relevant information.

1. What type/brand is the MBC?
2. How is it hooked up?
3. What happens if you bypass everything and connect the pressure source directly to the actuator?
 
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