Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 10-12-2019, 06:33 AM   #1
gabefromcali
 
gabefromcali's Avatar
 
Join Date: Sep 2015
Location: CA
Posts: 41
Trader Rating: (0)
gabefromcali is an unknown quantity at this point
Feedback Score: 0 reviews
Dont kill me...... vacuum question

For the life of me I cannot figure out where this vacuum line leads to. Its right next to the IACV. Does anyone know where this goes?



Also this guy? Its coming from right next to the throttle body




I tried searching around but couldnt specifically find where these went. Any help is much appreciated
gabefromcali is offline   Reply With Quote
Sponsored Links
Old 10-12-2019, 09:34 AM   #2
5280VertDET
Nissanaholic!
 
5280VertDET's Avatar
 
Join Date: Aug 2013
Location: Denver
Age: 35
Posts: 2,040
Trader Rating: (13)
5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light5280VertDET is a glorious beacon of light
Feedback Score: 13 reviews
If you cap both, hows it run? I think they are Cruise control related.
__________________
S13 Vert | SR | PE1420 | 5-Speed | 15x9.5 - 0 |
5280VertDET is offline   Reply With Quote
Old 10-12-2019, 12:03 PM   #3
kyral
Zilvia Junkie
 
kyral's Avatar
 
Join Date: Nov 2012
Location: wisconsin
Age: 27
Posts: 352
Trader Rating: (1)
kyral is on the path to ruinkyral is on the path to ruin
Feedback Score: 1 reviews
im pretty sure the top one goes to the fuel pressure regulator
__________________
The most threads never responded to.
kyral is offline   Reply With Quote
Old 10-12-2019, 04:59 PM   #4
gabefromcali
 
gabefromcali's Avatar
 
Join Date: Sep 2015
Location: CA
Posts: 41
Trader Rating: (0)
gabefromcali is an unknown quantity at this point
Feedback Score: 0 reviews
If the one in the top image is capped it seems to bump the idle up just a tick, maybe 2-300 rpm or so. The one in the lower image does nothing when capped.

Sorry I didnt mention but its a 97 ka24de if that makes any difference. All stock just has an aftermarket intake
gabefromcali is offline   Reply With Quote
Old 10-12-2019, 06:48 PM   #5
Pacman
Zilvia FREAK!
 
Pacman's Avatar
 
Join Date: Sep 2003
Location: Ohio
Age: 31
Posts: 1,143
Trader Rating: (1)
Pacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura aboutPacman has a spectacular aura about
Feedback Score: 1 reviews
The second one is supposed to connect to the intake just before the throttle body. I'm unsure what it does, it's dark out now.

The first I believe is fuel regulator vacuum, as previously stated.
__________________
In search of a Zenki S14 right side (passenger) fender and straight hood that are rust free.
Pacman is offline   Reply With Quote
Old 10-13-2019, 11:26 AM   #6
gabefromcali
 
gabefromcali's Avatar
 
Join Date: Sep 2015
Location: CA
Posts: 41
Trader Rating: (0)
gabefromcali is an unknown quantity at this point
Feedback Score: 0 reviews
Ok cool thanks guys. I’ll check soon as I’m home
gabefromcali is offline   Reply With Quote
Old 10-13-2019, 04:58 PM   #7
gabefromcali
 
gabefromcali's Avatar
 
Join Date: Sep 2015
Location: CA
Posts: 41
Trader Rating: (0)
gabefromcali is an unknown quantity at this point
Feedback Score: 0 reviews
Woohoo idle issue fixed!! Thanks a bunch!!

Also, yes the vacuum line near the IACV did go to the fuel pressure regulator, for anyone in the future thats having the same issue.
gabefromcali is offline   Reply With Quote
Old 10-14-2019, 08:24 PM   #8
kennedy8383
Zilvia Member
 
kennedy8383's Avatar
 
Join Date: Feb 2012
Location: Kanada
Age: 36
Posts: 184
Trader Rating: (1)
kennedy8383 is an unknown quantity at this point
Feedback Score: 1 reviews
Quote:
Originally Posted by kyral View Post
im pretty sure the top one goes to the fuel pressure regulator

Correct. Don't forget to clamp it so it doesn't pop out.
kennedy8383 is offline   Reply With Quote
Old 10-15-2019, 01:43 PM   #9
S14rebuild
Zilvia Addict
 
Join Date: May 2019
Location: Florida-FAIL
Posts: 630
Trader Rating: (3)
S14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud ofS14rebuild has much to be proud of
Feedback Score: 3 reviews
Quote:
Originally Posted by kennedy8383 View Post
Correct. Don't forget to clamp it so it doesn't pop out.
Why would it pop off? Its under vacuum...
S14rebuild is offline   Reply With Quote
Old 10-15-2019, 02:55 PM   #10
kyral
Zilvia Junkie
 
kyral's Avatar
 
Join Date: Nov 2012
Location: wisconsin
Age: 27
Posts: 352
Trader Rating: (1)
kyral is on the path to ruinkyral is on the path to ruin
Feedback Score: 1 reviews
Quote:
Originally Posted by S14rebuild View Post
Why would it pop off? Its under vacuum...
its for a boosted motor, so they dont pop off, but like you said its under vacuum on a NA
__________________
The most threads never responded to.
kyral is offline   Reply With Quote
Old 10-17-2019, 10:04 AM   #11
jedi03
Zilvia FREAK!
 
Join Date: Jul 2008
Location: albuquerque
Posts: 1,535
Trader Rating: (8)
jedi03 is on a distinguished road
Feedback Score: 8 reviews
yup...I forgot about boost on recent build and was wondering what loud whistling was a few days later lol
jedi03 is offline   Reply With Quote
Reply

Bookmarks


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 01:38 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™