Vacuum line everywhere, how much can i take off... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Gladman · 03-03-2004, 12:08 PM

Im not sure what all the lines are for, some look to be EGR related some look legit.

What if can i pull off my motor?

Ill be running a KA-T, so the more simple, the better. I have no intentions of ever running an emmissions system again, so the more i can take off, the better... heres a pic.

Also, is there a reason all the vacuum lines run all the way across the engine bay just for the charcoal canister?

old_s13 · 03-03-2004, 01:31 PM

all you need is ONE vacuum line, and that is for the fuel pressure regulator.

EGR = junk
BPT = junk
AIV = junk
Charcoal Canister = junk

am I missing anything else?

Oh yeah, you're round tail light 30 dollar special = junk

heheeeeeee

Gladman · 03-03-2004, 02:47 PM

haha, fair enough....

junk is coming OFF!

will it trip an engine light?

Flybert · 03-03-2004, 03:05 PM

EGR might but it didn't for me. Mine is a late 93' s13 and it was originally sold in texas. In the FSM, it makes a distinction about whether there is a sensor which will trip an check engine light. It says that it happens for california models only but I've heard otherwise.

Gladman · 03-03-2004, 05:31 PM

alright pulled of the intake manifold and yanked all the lines... simple enough....

now you say i only need 1 to the FPR, what about the intake manifold flappers?

Fibercus · 03-03-2004, 08:41 PM

Doesnt the AIV (air intake valve) use metered air? If you were to run the AIV line open to the atmoshpere, wouldnt that cause problems?

Im assuming you talking about the idle air intake valve that is.

*Jeff240sx* · 03-03-2004, 09:44 PM

Quote:

Originally Posted by Fibercus

Doesnt the AIV (air intake valve) use metered air? If you were to run the AIV line open to the atmoshpere, wouldnt that cause problems?

Im assuming you talking about the idle air intake valve that is.

Yes. This is why my KA-T FMIC piping has a bung for the IACV, my previous Injen intake did, and the stock intake did.
-Jeff

andrave · 03-03-2004, 09:45 PM

if you just go yanking things off willy nilly I believe that there are some fittings you need to cap or crimp...

*LanceS13* · 03-03-2004, 11:16 PM

The air intake valve (AIV) and idle air control (AIC) are two different things. You can remove the AIV system completely (the little black box and metal hard lines connecting the air box to the manifold) as long as you cap the holes. Could be wrong, but I don't recall the AIV using any vacuum source anyway.

03-03-2004, 12:08 PM	#1
Gladman Zilvia Member Join Date: Feb 2004 Location: Vancouver Age: 39 Posts: 287 Trader Rating: (0) Feedback Score: 0 reviews	Vacuum line everywhere, how much can i take off... Im not sure what all the lines are for, some look to be EGR related some look legit. What if can i pull off my motor? Ill be running a KA-T, so the more simple, the better. I have no intentions of ever running an emmissions system again, so the more i can take off, the better... heres a pic. Also, is there a reason all the vacuum lines run all the way across the engine bay just for the charcoal canister? __________________ Kick Ass 2.4Liter Engine!

03-03-2004, 02:47 PM	#3
Gladman Zilvia Member Join Date: Feb 2004 Location: Vancouver Age: 39 Posts: 287 Trader Rating: (0) Feedback Score: 0 reviews	haha, fair enough.... junk is coming OFF! will it trip an engine light? __________________ Kick Ass 2.4Liter Engine!

03-03-2004, 05:31 PM	#5
Gladman Zilvia Member Join Date: Feb 2004 Location: Vancouver Age: 39 Posts: 287 Trader Rating: (0) Feedback Score: 0 reviews	alright pulled of the intake manifold and yanked all the lines... simple enough.... now you say i only need 1 to the FPR, what about the intake manifold flappers? __________________ Kick Ass 2.4Liter Engine!

03-03-2004, 11:16 PM	#9
LanceS13 AutoX Junkie Join Date: Jun 2001 Location: MS Age: 43 Posts: 2,044 Trader Rating: (0) Feedback Score: 0 reviews	The air intake valve (AIV) and idle air control (AIC) are two different things. You can remove the AIV system completely (the little black box and metal hard lines connecting the air box to the manifold) as long as you cap the holes. Could be wrong, but I don't recall the AIV using any vacuum source anyway. __________________ 1992 240SX Fastback #47 DSP MS SCCA RX-7 ITS Project FOR SALE

03-03-2004, 01:31 PM	#2
old_s13 BANNED Join Date: Nov 2001 Location: Los Angeles, CA. Posts: 2,824 Trader Rating: (0) Feedback Score: 0 reviews	all you need is ONE vacuum line, and that is for the fuel pressure regulator. EGR = junk BPT = junk AIV = junk Charcoal Canister = junk am I missing anything else? Oh yeah, you're round tail light 30 dollar special = junk heheeeeeee

03-03-2004, 03:05 PM	#4
Flybert Post Whore! Join Date: Mar 2003 Location: none Posts: 3,862 Trader Rating: (7) Feedback Score: 7 reviews	EGR might but it didn't for me. Mine is a late 93' s13 and it was originally sold in texas. In the FSM, it makes a distinction about whether there is a sensor which will trip an check engine light. It says that it happens for california models only but I've heard otherwise.

03-03-2004, 08:41 PM	#6
Fibercus BANNED Join Date: Jul 2001 Location: Canyon Country, CA Age: 44 Posts: 714 Trader Rating: (0) Feedback Score: 0 reviews	Doesnt the AIV (air intake valve) use metered air? If you were to run the AIV line open to the atmoshpere, wouldnt that cause problems? Im assuming you talking about the idle air intake valve that is.

03-03-2004, 09:45 PM	#8
andrave BANNED Join Date: Apr 2002 Location: Burton WV Posts: 2,350 Trader Rating: (0) Feedback Score: 0 reviews	if you just go yanking things off willy nilly I believe that there are some fittings you need to cap or crimp...