throttle body/vacuum line route - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

devonkyle77 · 07-26-2008, 09:23 PM

my question is where do the two vacuum lines (you can see the 2 hardlines in the bottom center of the TB) route to? if its relevant this is for an s14 sr. thanks!

GabeS14 · 07-26-2008, 09:27 PM

both of mine are sealed off!
one is charcoal canister evap line, and the other I forgot I think is just for vac.

devonkyle77 · 07-26-2008, 09:48 PM

what did you seal them off with? the one that is "just for vac", can you be specific about where it goes? thanks man

Bigsyke · 07-26-2008, 09:56 PM

The one just for vac goes to your intake pipe

flip3d · 07-26-2008, 09:59 PM

autozone has little rubber caps. those work perfect.

devonkyle77 · 07-26-2008, 10:04 PM

which one is it that is just for vac, the one on the right or the left in the pic?

flip3d · 07-26-2008, 10:16 PM

Quote:

Originally Posted by devonkyle77

which one is it that is just for vac, the one on the right or the left in the pic?

d00d, they do the same thing. pick one.

GabeS14 · 07-27-2008, 05:33 AM

I am pretty sure the one on the rigth is just vac, and left is the charcoal, canister thingy..lol.. get the caps that the previous guy posted about, thats what I have on both.

bo2o · 07-27-2008, 06:59 AM

juss loop a hose to each other. no need for cap haha.
cheap ftw.

Bigsyke · 07-27-2008, 10:31 AM

What ive found about capping the lines to the evac was......Durring decel, the lack of fuel vapors creates a super lean condition. Its also constantly purging, and I would assume fuel vapors taking the place of air would Decrease detonation? correct me if im wrong, but after my evap removal, things have been running a little rough from capping the lines.

devonkyle77 · 07-27-2008, 01:45 PM

glad you posted bigsyke. if anyone could shed some light on this it would be appreciated.

GabeS14 · 07-27-2008, 10:58 PM

I thought not having the evap, only caused the rpms to drop a bit too low when getting off the gas. is that what you feel?

Bigsyke · 07-28-2008, 12:03 AM

well there has been some hickups @ idle...but mostly on decel I can hear the exhaust backfiring due to a lean condition. Yes the evap is ugly as hell, but Im going to replace all the hoses, hook it back up with new hardlines and see if any misfiring will cease. If anybody can shed some info about a lean condition durring decel please Let us know. Need to know if it will cause detonation or any harm.,...if not then horray!

GabeS14 · 07-28-2008, 12:30 AM

Quote:

Originally Posted by Bigsyke

well there has been some hickups @ idle...but mostly on decel I can hear the exhaust backfiring due to a lean condition. Yes the evap is ugly as hell, but Im going to replace all the hoses, hook it back up with new hardlines and see if any misfiring will cease. If anybody can shed some info about a lean condition durring decel please Let us know. Need to know if it will cause detonation or any harm.,...if not then horray!

I also have the back fires(loud) during downshift and deccel.
but I thought that was cuz I am running rich??(850cc inj)

07-26-2008, 09:23 PM	#1
devonkyle77 Post Whore! Join Date: Sep 2003 Location: md Age: 41 Posts: 3,091 Trader Rating: (3) Rides Gallery: devonkyle77 Feedback Score: 3 reviews	throttle body/vacuum line route my question is where do the two vacuum lines (you can see the 2 hardlines in the bottom center of the TB) route to? if its relevant this is for an s14 sr. thanks! __________________ WTB-NARDI wheel & NRG 2.8 QR

07-26-2008, 09:27 PM	#2
GabeS14 Post Whore! Join Date: Dec 2005 Location: Sin City Las Vegas Posts: 4,521 Trader Rating: (27) Rides Gallery: GabeS14 Feedback Score: 27 reviews	both of mine are sealed off! one is charcoal canister evap line, and the other I forgot I think is just for vac. __________________ E92 M3 19" wheels for sale///JWT Cams and Springs +30whp for sale... cheap.

07-26-2008, 09:48 PM	#3
devonkyle77 Post Whore! Join Date: Sep 2003 Location: md Age: 41 Posts: 3,091 Trader Rating: (3) Rides Gallery: devonkyle77 Feedback Score: 3 reviews	what did you seal them off with? the one that is "just for vac", can you be specific about where it goes? thanks man __________________ WTB-NARDI wheel & NRG 2.8 QR

07-26-2008, 10:04 PM	#6
devonkyle77 Post Whore! Join Date: Sep 2003 Location: md Age: 41 Posts: 3,091 Trader Rating: (3) Rides Gallery: devonkyle77 Feedback Score: 3 reviews	which one is it that is just for vac, the one on the right or the left in the pic? __________________ WTB-NARDI wheel & NRG 2.8 QR

07-27-2008, 05:33 AM	#8
GabeS14 Post Whore! Join Date: Dec 2005 Location: Sin City Las Vegas Posts: 4,521 Trader Rating: (27) Rides Gallery: GabeS14 Feedback Score: 27 reviews	I am pretty sure the one on the rigth is just vac, and left is the charcoal, canister thingy..lol.. get the caps that the previous guy posted about, thats what I have on both. __________________ E92 M3 19" wheels for sale///JWT Cams and Springs +30whp for sale... cheap.

07-26-2008, 09:56 PM	#4
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 40 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	The one just for vac goes to your intake pipe

07-26-2008, 09:59 PM	#5
flip3d Zilvia FREAK! Join Date: Feb 2008 Location: Ft Lauderdale, FL Age: 37 Posts: 1,473 Trader Rating: (1) Feedback Score: 1 reviews	autozone has little rubber caps. those work perfect.

07-27-2008, 06:59 AM	#9
bo2o Zilvia FREAK! Join Date: May 2006 Location: 626 socal! Posts: 1,315 Trader Rating: (7) Feedback Score: 7 reviews	juss loop a hose to each other. no need for cap haha. cheap ftw. __________________ fS! *vlsd ! slim fans ! hid kits ! lug nuts !* http://www.zilvia.net/f/search.php?d...earchuser=bo2o ^^^click^^^

07-27-2008, 10:31 AM	#10
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 40 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	What ive found about capping the lines to the evac was......Durring decel, the lack of fuel vapors creates a super lean condition. Its also constantly purging, and I would assume fuel vapors taking the place of air would Decrease detonation? correct me if im wrong, but after my evap removal, things have been running a little rough from capping the lines.

07-27-2008, 01:45 PM	#11
devonkyle77 Post Whore! Join Date: Sep 2003 Location: md Age: 41 Posts: 3,091 Trader Rating: (3) Rides Gallery: devonkyle77 Feedback Score: 3 reviews	glad you posted bigsyke. if anyone could shed some light on this it would be appreciated. __________________ WTB-NARDI wheel & NRG 2.8 QR

07-27-2008, 10:58 PM	#12
GabeS14 Post Whore! Join Date: Dec 2005 Location: Sin City Las Vegas Posts: 4,521 Trader Rating: (27) Rides Gallery: GabeS14 Feedback Score: 27 reviews	I thought not having the evap, only caused the rpms to drop a bit too low when getting off the gas. is that what you feel? __________________ E92 M3 19" wheels for sale///JWT Cams and Springs +30whp for sale... cheap.

07-28-2008, 12:03 AM	#13
Bigsyke Zilvia FREAK! Join Date: Jun 2008 Location: NA Age: 40 Posts: 1,342 Trader Rating: (0) Feedback Score: 0 reviews	well there has been some hickups @ idle...but mostly on decel I can hear the exhaust backfiring due to a lean condition. Yes the evap is ugly as hell, but Im going to replace all the hoses, hook it back up with new hardlines and see if any misfiring will cease. If anybody can shed some info about a lean condition durring decel please Let us know. Need to know if it will cause detonation or any harm.,...if not then horray!

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