bov/mbc help

[Aproductions]

so i got a FMIC and the bov it came with has 2 vacuum nipples. i also have a MBC so do i use one of the bov nipples with my mbc? please help/.

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[JMiller]

The top nipple is for Vacuum and the bottom is for a constant pressure source(can come from nipple on turbo or intercooler pipe). Most people just leave the second/lower nipple open/vented.

 

[MrBoxx]

Your MBC should use a pressure source from the turbo compressor housing or the lower intercooler pipe for its pressure signal. The other side of the MBC goes straight to the wastegate actuator nipple. Do NOT use the BOV line for anything other than the BOV. Do not vent your BOV to atmosphere.

There have been quite a few threads on these topics. A quick search should yield a lot more information on them, if you'd like to take the time to do so.

 

[Aproductions]

yeah i recirculate and everything i was just wondering y there was another vaccum line for this bov. but ill just leave it open?

 

[MrBoxx]

Yes. Leave the vacuum nipple on the bottom of the BOV alone.

 

[Aproductions]

off topic but im having a problem installing my fmic. will removing my power steering cooler matter?

 

[MrBoxx]

Answered that in your other thread on the topic.