Vacuum line advice

fonz87

89 Turbo!!!!
Nov 17, 2007
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37
Streamwood, IL
Just curious what Vacuum lines I don't need or remove from the engine bay ??
I don't need to do emissions ever since I live in IL.

Motor is stock and I recently removed the line that runs from the BOV to the Mani
And also VSV lines... or whatever those red sensors are called. I haven't notice any difference besides a little raise in the RPM.

What have people done with their Vacuum lines ?
 

radiod

Supramania Contributor
Dec 13, 2007
1,342
0
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Abbotsford, BC
Short answer is all of them do something that unless you're running a standalone ECU, you shouldn't be changing them. Yes, it can look like a spaghetti mess (especially if they're not router properly), but they're all there for a reason. Why would they put lines in that were not necessary?

fonz87;1858170 said:
Motor is stock and I recently removed the line that runs from the BOV to the Mani

So how is your blow off valve working...

Elie_Kaze;1858223 said:
What does VSV stand for?

VSV = Vacuum Switching Valve. Basically an electronically controlled valve that opens or closes a vacuum line.