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is this bad? Open Vacuum lines

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Clutch GSX

15+ Year Contributor
347
1
Nov 28, 2006
Denver, Colorado
I found these vacuum lines going to nothing (the X's in the pic) What should I do? I tried to plug them with my finger while the car was on and it made the car idle poorly. The blue things are T splitters. Sorry for the crappy paint drawing.
 

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I will go out on a limb and say yes . find out where they go . Hook them up or eliminate properly .
 
I'm assuming the green box is your FPR? If so, remove the Ts and connect it straight from the intake manifold to the FPR.

It is strange though why your car would idle poorly if you plug them with your fingers, especially if the green thing is your FPR. That's a pretty bad boost leak which means that your fuel pressure is not rising with boost as it should under load!
 
Yes, as stated above-your FPR solenoid needs to have manifold pressure on the other side. Eliminate both T splitters and hook the FPR to the intake manifold. This is assuming I am interpreting your diagram correctly:)
 
Maybe there was a boost gauge hooked up before? At any rate the guys above are right, run straight from the FPR solenoid to the IM.(green thing to purple thingLOL
If you plan to run a boost gauge, T it into that line, but otherwise there shouldn't be "T's" in it.
 
Cool thanks guys. :thumb: Yeah the car was a mess from the last owner. I pulled out a bunch of random wires from gauges, electronic boost controllers and other things that weren't even there anymore. Ill get those closed up and hopefully ill be able to build boost now. Although it doesnt have a wastegate at all so i still might be screwed.
 
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