Vaccum hose question - so many hoses, so little lines- got pics!

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redsx13
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Car: 93 240sx 03 350z

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oops, i spelled vacuum wrong, too late...

Ok, so here is the problem, all of the following need a vacuum source, so far i have just been T-ing off my Fuel pressure regulator. my question for you is, are there any other lines i can use as a vacuum source? For obvious reasons, i just dont want to keep T-ing off my FPR.

-boost gage-boost controller-IAT sensor

this is my current set up

just ignore the "has play" thing, that was for something else.
Modified by redsx13 at 1:26 AM 1/15/2009


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SpeedRacer1
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Car: 1990 240SX, G35

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You can successfully use the one vacuum port as a source for pretty much everything. The bottom port and other port on top, driver's side, are for the charcoal canister.

The FPR, BOV, boost gauge and controller can all be sourced off the one vacuum port. Its how its done at the factory see pic below. IAT? If you mean intake air temp sensor, the SR doesnt have one.


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redsx13
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SpeedRacer1 wrote:You can successfully use the one vacuum port as a source for pretty much everything. The bottom port and other port on top, driver's side, are for the charcoal canister.

The FPR, BOV, boost gauge and controller can all be sourced off the one vacuum port. Its how its done at the factory see pic below. IAT? If you mean intake air temp sensor, the SR doesnt have one.
Before i made this post, a actually came across this diagram multiple times, while searching. It was somewhat helpful, but it didn't really answer my questions.

There are three ports on the stock throttle body, by "vacuum port" i assume you mean the top left, (the one that goes to the fpr).

so here ins my question..... is the top left nipple the only vacuum source?or can i T-off the right one?

the Intake air temp sensor is for my D-jetro.
Modified by redsx13 at 1:59 AM 1/16/2009

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Hijacker
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All three are vacuum sources

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240_SeX
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I used the wastegate hose for my boost gauge, its on the drivers side and eaiser to run the line into the cabin without using 10 feet of line, and it looks cleaner.

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the converted
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Your IAT needs to be in the flow stream, so either in your cold pipe or the intake manifold itself.

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SpeedRacer1
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The top two should be fine as a source. Did your PFC come with an IAT?

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redsx13
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the converted wrote:Your IAT needs to be in the flow stream, so either in your cold pipe or the intake manifold itself.
o ya, i ment map, my iat is in my cold pipe rite before my throttle body

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redsx13
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SpeedRacer1 wrote:The top two should be fine as a source. Did your PFC come with an IAT?
ya it came with both an iat and a map sensor.

thanks for all the info everyone.


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