Trying to lower PSI.. help please

[chronicvex]

Ok I tried to lower PSI because I was getting fuel cut at top of 3rd etc. Boost gauge was reading just under 14 PSI. turned my MBC counterclockwise... but the PSI seems to have gone up. I was checking out mbc and I might have screwed it up because the screw came out of mbc now I hear stuff moving around inside mbc after I put screw back in. Side of MBC is going to wastegate actuator or w/e and the bottom is going off of blow off valve hose. Anyway, I really just want to go back to stock PSI... Anything special I need to do after removing MBC? I dont know if it matters but it has a 16g. Thanks for your time.

 

[concept4g63]

If you want to go back to stock just take it off thats all

 

[chronicvex]

I removed MBC and it is boosting past 15 real fast.... any ideas?

 

[tweek814]

If I were you id leave it alone

 

[RadDsm]

I removed MBC and it is boosting past 15 real fast.... any ideas?

Did you run a vacuum line from your boost source straight to the wastegate?

 

[JusMX141]

I removed MBC and it is boosting past 15 real fast.... any ideas?

Sounds like you're experiencing boost creep.

Do you have a Genuine Mitsubishi 16G on your car, or one of those eBay Chinese junks with the adjustable wastegate actuator?

 

[chronicvex]

i just took out MBC and connected the hoses... im guessing that wasn't what i was supposed to do... anyone have stock vacuum diagram for idiots maybe? And yea tweek.. i shouldn't have messed with it... but now there is no turning back...

Sounds like you're experiencing boost creep.

Do you have a Genuine Mitsubishi 16G on your car, or one of those eBay Chinese junks with the adjustable wastegate actuator?

genuine

 

[9!'clipseDOHC]

anyone have stock vacuum diagram for idiots maybe?

2g stock vacuum route:

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Hope this helps!

 

[WORPeclipse]

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[chronicvex]

Ok still kind of confused. There is only one hose coming from where turbo is which I thought was wastegate actuator... its under turbo inlet. Where should that one go to? Right now it's Tee'd into BOV hose. I have greddy type s and i had the little nipple tee'd in between wastegate actuator and MBC...

yea.. by the way only thing i'v changed since I bought the car with hoses is Teeing in little nipple for type s when i installed..

Can I just run wastegate actuator hose to small nipple on type s?

 

[WORPeclipse]

Does this help? Its how to hook up a boost controller.

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[chronicvex]

Mines set up like diagram A... So my BOV and wastegate actuator should go to intake mani vacuum port? Also have small nipple on bov spliced in as well...

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thats how I have it set up

My only problem is I want to run stock PSI....

 

[9!'clipseDOHC]

You should never T into the BOV line. Check out this thread: The Best Way To Install A MBC

However if your hitting a higher psi just running wastegate pressure, then you need to reinstall the factory boost control solenoid. Refer to the diagram I posted for the correct way to do it.

 

[WORPeclipse]

^^^^^ Agreed

 

[FwDdSm]

If you hook up a vacuum line straight from your wastegate to a boost source(such as the j-pipe) and still experience the problem, then more than likely you are getting boost creep.

 

[chronicvex]

Ok, guess its time to tap into j pipe because I set it up how it was before and still have the problem and I have MBC screwed out almost as far as possible. so just run the vacuum hose from wastegate actuator to jpipe? With or without MBC? If it is boost creep.. where do i go from there?
Thanks