Problem with mbc

[eagletalonesi84]

ok everytime i try to turn up my boost it wont go. I unplugged my mbc from my wastegate and it went do i need a whole new system or can i get the controller alone

 

[Slippi84]

You got to be a little more specific what kind of boost controller do you have. What do you mean by it won't go up the boost doesn't rise. First thing I hope your using an aftermarket boost gauge and not using you POS stock gauge.


edit: I see in your profile you are using a xbc manual boost controller but like i said before do you have an aftermarket boost gauge. That T fitting that comes with the kit should go in between the hose that comes from the top of your bov, and the other should go to you wastegate actuator.

 

[eagletalonesi84]

i have an xbc controller and everytime i try to screw it in the boost never rises but when i unplugged it it shot up. i have an aftermarket boost gauge

 

[Slippi84]

That's cause when you unplug it nothing is telling your car ok this is where to stop. What you need to do is when you tighten in down make sure that saftey bolt is tightened all the way so the screw won't back out. Also when I first installed my bleeder valve people said to start off safe but it wouldn't go any higher than stock boost untill I had it a tightened a descent amount just to raise it but once i found that point that raised it half a turn after that wa like a 5PSI raise which is pretty sensitive. You could take apart the controller and make sure everything is straight just back the screw out all te way and check it out. If I were you I would just send it back and get a new one. You are gonna need to get some other mods before you turn your boost up anyway man. Trust me you do not want to go boost happy with out atleast exaust and a K&N filter an even with that only raise it like 2 maybe 3 psi.

edit: again checked out your profile again foot out of mouth. I see you got a cat back and a FMIC? Don't know why you got a fmic this soon that might be your problem. It would take a 14b a good amount of time to spool up with that big of an intake setup. The pressure drop from that fmic with just a cat back is def not good for spool.