DV vac line?

I tore the vac line that's right off the DV. You know, the thin threaded one that runs back up to the engine; not the connection to the turbo outlet hose. I'm just wondering if anybody knows where this vac line goes, or if there's someone on here who has diagrams of where each vac line goes on the 1.8T ATW engine *COUGH* AUDITECH *COUGH*

Edit: I think it's the one that connects back into the turbo inlet. I'm not sure, a diagram would help!

Look at your hood when it's open. There should be a diagram showing where all the lines go.

I will search around some to though.

Josh

Thanks buddy. I'm running a straight BOV now, it sounds like a sequential. Super gay.  And I can't spike past 8-10psi anymore. I think, on top of this, I have a major boost leak elsewhere.

LOL, that sucks.

Try fixing that vac line first. Did the line just come off or is it ripped? you can always follow the line to see where it goes. I know it goes over by the intake manifold.

Josh

It's the one that leads to the turbo inlet. It vanishes under the block, and it's one of those threaded ones that tends to fray alot, but has a rubber center, you know? I can definitely feel the tear, it's pretty ****ed up.

Since there's some slack, I might just cut off the part that's torn and see if there's enough to pull down and re-secure it. If not, oh boy, vacuum line is so expensive, I might go bankrupt buying it

LOL. Yeah try that first... if it doesn't work pull out a flashlight and a mirror and see where that thing goes.

Josh

It goes from the dv, across the timing belt cover, over the alternator, and to a vacuum fitting underneath the intake manifold. It's tough as hell to get your hand up under there to change the vacuum line, but it can be done. If you can't get at it, you'll need to find someone with short forearms and smaller hands. 

Yeah.. changed mine last week, its a pain in the a$$, plus you cut your hands up.  Its actually easier if you take the big intake hose off from the intake mani.

The throttle body inlet?

I would of helped you but i was offended with the *cough* auditech *cough*
 
But its not hard, the dv line is attached to the n249 which is always under the intake manifold.  Just pull the stock line and replace it.  You dont have to take the same path back, just keep it away from moving parts.  While your at it, bypass the n249.

Nate, you're saying to connect the DV straight into the intake manifold?

Basically.  The vac line goes from the intake manifold to the n249 and then to the dv.  The n249 can and will open the dv to control boost and i prefer to not have that happen.  If you remove it, you will have to do some resistors to keep a cel from appearing but if you just bypass it, it has the same effect as bypassing the n75.  So basically you get faster dv responce and it wont open unless you let off the gas

So the n249 is a failsafe in case the N75 goes bust? I know I'll get a CEL for an n249 malfunction, or something, but it seems like you can do without it completely. What kind of resistor do I need for the plug, to prevent my CEL?

The n249 is kind of like overboost pertection.  It is easier to just bypass the vac lines like the n75 and not have to worry about removing it.  Its not like its all that visable (eyesore) or weighs anything.  So not worth the money and time spent to completly remove it.

I'm betting it would be a huge PITA to completely remove it, rather than just to tricking my ECU.

Okay, so vac line from the DV runs straight into where my n249 was (right on the intake manifold, facing the throttle body, and opposite of the FPR. Am I thinking of the right n249? ) And then the n249 gets a resistor capped so it doesn't throw a CEL.

Can I put the resistor anywhere along the vac line, or do I need to find exactly where the n249 sits?

the resistor is for the electric wires, not vacuum.  SInce you are just bypassing it, you dont need to worry about any of that (god, i think i have said that a few times ).
 
Just take the line from the manifold to the dv and be done with it.  If you use silicone hose, you wont have to worry about it cracking again.

Me + electronics = super fail. If you think I'm bad with that, don't even think about putting power tools in my hands 

Oh, any idea on how long the vac line is, from the stock DV position to the intake manifold?

If I get blue silicone hosing for the vacuum line, will it add any horsepower? I'm looking for at least a couple whp as a result of this mod.

no, you wont gain anything but blue hoses.   Dont know the exact length, but 4' should be plenty to go from the intake man of the dv with some to spare

Haha thank god you caught that joke instead of flipping out and calling me a newb.

Okay, so four feet is enough huh. I'm going back down once I figure out what tubing diameter I need... I have two samples that I got from them, one is 4mm and the other is something a bit smaller, I forget exactly what, but I want to say 2.xmm. Also, it's silicone, so yay for no more tears!

Its 4mm.  The wastegate is 6mm and the dv is 4mm.

get 5, i think its a little over 4.  You might as well replace all of the vac lines at once.

No kidding.  A good amount of 4mm and 6mm should cover the bulk of lines.  Think there are some 10mm lines also