What to do with stock vacuum lines when installing MBC

[brandnew161]

When i bought my TSi it came with a box of parts including a Hallman Manual Boost Controller (Hardware store, brass fittings style). I just installed a evoIII 16g yesterday and need the MBC installed. So I looked at this page...

http://www.dsmtuners.com/forums/articles-turbo-system-intercooler/237982-best-way-install-mbc.html

...and thats what I'm going to do. I have a brass fitting already installed on my j-pipe. I also looked at the install instructions here...

Visual Frequently Answered Questions - Home Page

The vFaq instructions are a little hard to follow considering that the guy who owned the car before me did some of his own vacuum routing. So here's my question, what do I do with the stock vacuum lines once the MBC is installed? One of the two hoses exiting the wastegate solenoid goes to the WG and tee's with the BOV and the vacuum line running to a fitting on the intake manifold. The other connects to the nipple on the intake.

Thanks for the help

 

[rush2252]

This is the taboo speedshop article I followed. I removed emissions. However I kept the sensors plugged in and the vacuum nipples capped on the solenoids. No CELs but im 95.

Hope this helps http://www.dsmtuners.com/forums/art...-speed-shop-vacuum-diagram-removal-1g-2g.html

FYI the first crude illustration shows the MBC installed backwards. The actual pics show it installed correctly.

If your running the 2g mani. Run a dedicated line to the BOV from the large nipple in the middle of the mani. Then run a line from the small nipple on the pass side to the FPR. T this for your boost gauge if you have one. Other than that you can cap off the EGR and delete the FPR solenoid.

 

[brandnew161]

ok so by looking at those pictures I have to
-remove both vacuum lines from the WG Solenoid
-cap the two ports on the WGS
-cap the nipple on the intake

However I thought that it was best to good the boost reference from the jpipe and not the bov? If I hook it up my way will it affect any of the other vacuum routing (line going from bov to nipple on 2g mani)?

 

[rush2252]

I just unhooked all vacuum lines to the BCS leave it plugged in electrically. You do want to run the boost source from the j pipe. I just noticed they use a T in the BOV. This is a BIG negative as you pointed out. I apologize.

You only need the source for the WGA BOV and FPR. The rest is emissions.

 

[brandnew161]

alright great, thanks for you help man, glad to get it cleared up