The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

Is my MBC setup FUBAR?

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

awild

20+ Year Contributor
401
0
Jul 28, 2003
Grand Rapids, Michigan
Ok I've been trying to find out why I'm getting fuel cut. Car came without a boost gauge but mbc. Dangerous not knowing what you're running on an EVO III 16g...more dangerous to come and find out it's basically running 20psi plus.

*Installed gauge today. Drove car. Boost is way high and shows no signs of being controlled at all. MBC adjustments do nothing at all. Back the screw all the way out...nothing but super high boost still. The screw was originally all the way in (thus maxing the mbc's setting to the highest possible...another not so good thing to find).

So here's my MBC's routing. Is it f'd up or am I crazy? Should I change how the previous owner has it routed and hope that's the cause or is it likely the whole MBC is just crap.

You must be logged in to view this image or video.
 
My homebrew one thats on my car doesnt have one of those 1/32" bleeder holes...ugh my mbc is so screwed. Time to get a new one
 
Just bought a Voodoo III MBC. Pair that with drilling the Jpipe and it better solve the limitless boost issue.
 
Just bought a Voodoo III MBC. Pair that with drilling the Jpipe and it better solve the limitless boost issue.

WTF still waiting for this thing to arrive from voodooboost.com . Ordered it 15 days ago
 
I don't think it's going to, all of their phone numbers are disconnected and they dont respond to email. I'm about to start my paypal dispute.
 
The MBC was what was causing sever overboosting. I took it out of the loop and there's no overboosting...in fact there's only stock boost atm, LOL. The homebrewed mbc that came with the car was stuck shut. The ball bearing wouldnt even budge if I blew in it. Gotta go get a jpipe nipple drilled in, then install a good mbc.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top