Notices
Series I Aftermarket Performance Modifications Discussion of power adding modifications

How to perform a vfad-sectomy?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 07-09-2006, 09:30 PM
  #1  
Registered
Thread Starter
 
climacus's Avatar
 
Join Date: Jul 2006
Location: Toronto ON
Posts: 600
Likes: 0
Received 0 Likes on 0 Posts
How to perform a vfad-sectomy?

I'd like to disable the VFAD flap to see what difference it makes in intake noise. What's the best way to do it? I think unplugging the green connector behind the airbox will throw a code? So which vacuum hose should I unplug from where to disable VFAD? And what should I buy from the hardware store to cap off the hose? I don't have an aftermarket intake system so I'm improvising here. Thanks!
Old 07-10-2006, 11:29 AM
  #2  
⎝⏠⏝⏠⎠
 
mysql101's Avatar
 
Join Date: Apr 2004
Location: USA
Posts: 8,625
Received 5 Likes on 4 Posts
Just clamp the hose off, or tie it into a knot. The added noise is trivial, and you shouldn't expect much from doing this.
Old 07-10-2006, 01:56 PM
  #3  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Pull the harness connector to the solenoid. 7 seconds and no VFAD (or CEL or vacuum leak).
VFAD is pointless.
Old 07-10-2006, 02:13 PM
  #4  
I don't mind pistons
 
unreal89's Avatar
 
Join Date: Jun 2005
Location: Cal Poly Pomona
Posts: 399
Likes: 0
Received 1 Like on 1 Post
What is VFAD, i know its the tube that connects to the brass looking thing on the intake, right?
Old 07-10-2006, 02:31 PM
  #5  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
Question ummm???

Originally Posted by MazdaManiac
Pull the harness connector to the solenoid. 7 seconds and no VFAD (or CEL or vacuum leak).
VFAD is pointless.
will this completely disable it?
you disconnect it for 7 seconds??
your explanation is a little unclear...
Old 07-10-2006, 03:33 PM
  #6  
Registered User
 
Aseras's Avatar
 
Join Date: Mar 2005
Posts: 1,587
Likes: 0
Received 1 Like on 1 Post
Originally Posted by unreal89
What is VFAD, i know its the tube that connects to the brass looking thing on the intake, right?
Variable fresh air duct... it's a little flap that opens up to bring in fresh air. basically a built in CAI...

Old 07-10-2006, 03:36 PM
  #7  
⎝⏠⏝⏠⎠
 
mysql101's Avatar
 
Join Date: Apr 2004
Location: USA
Posts: 8,625
Received 5 Likes on 4 Posts
It's more like a cold air intake preventer. It closes off the duct till it decides to open up.
Old 07-10-2006, 04:00 PM
  #8  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
so, how can we deactive the solenoid w/out causing any problems??
i'd like to hold off on removing the bumper for this until my RB duct arrives...
Old 07-10-2006, 04:02 PM
  #9  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Originally Posted by dgrx8
will this completely disable it?
you disconnect it for 7 seconds??
your explanation is a little unclear...
If that is unclear, you shouldn't attempt it.

Originally Posted by Aseras
basically a built in CAI...
Though, because of the design of the upper support and bumper, it sucks in hot air that rolls over the top of the radiator.
Even the regular intake sock doesn't escape the hot air.
Typical IAT is 20°F over ambient because of this.
Old 07-10-2006, 04:14 PM
  #10  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
Originally Posted by MazdaManiac
If that is unclear, you shouldn't attempt it.

thanks for the helpful reply...
if you'd have written a decent sentence... i'd be able to understand what you're saying...

"Pull the harness connector to the solenoid." ... pretty self explanatory. no problem here yet!!
next sentence...
"7 seconds and no VFAD (or CEL or vacuum leak)." ... wtf does this sentence mean to someone who has never attemted to do what you're trying to explain?????

if you're going to post any information that may be useful to others on the board.. it'd be nice if it was posted in a way that others besides yourself could understand.
Old 07-10-2006, 04:17 PM
  #11  
⎝⏠⏝⏠⎠
 
mysql101's Avatar
 
Join Date: Apr 2004
Location: USA
Posts: 8,625
Received 5 Likes on 4 Posts
He meant it takes all of 7 seconds, it's that easy.
Old 07-10-2006, 04:21 PM
  #12  
Registered User
 
two rotors's Avatar
 
Join Date: Dec 2003
Location: Whitby Ont
Posts: 431
Likes: 0
Received 1 Like on 1 Post
Disconnect the green connector behind the airbox.It may take about 7 seconds or more to do it and there will be no CEL etc etc
Old 07-11-2006, 12:38 AM
  #13  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
Originally Posted by dgrx8
if you're going to post any information that may be useful to others on the board.. it'd be nice if it was posted in a way that others besides yourself could understand.
The vast majority of what I post to this board is understood only by myself. Why should this have been any different?
Old 07-11-2006, 08:31 AM
  #14  
resU deretsigeR
 
jstkilntim's Avatar
 
Join Date: Jan 2006
Location: Jacksonville, FL
Posts: 743
Likes: 0
Received 0 Likes on 0 Posts
^^Funny!^^
Old 07-11-2006, 10:08 AM
  #15  
Administrator
 
zoom44's Avatar
 
Join Date: Jul 2002
Location: portland oregon
Posts: 21,958
Received 115 Likes on 88 Posts
Originally Posted by dgrx8
if you're going to post any information that may be useful to others on the board.. it'd be nice if it was posted in a way that others besides yourself could understand.
Jeff is one of the most helpful people on this forum. Perhaps you should know who you are talking about before complaining about your inability to read a sentence. he was quite clear.
Old 07-11-2006, 11:22 AM
  #16  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
Unhappy

Originally Posted by zoom44
Jeff is one of the most helpful people on this forum. Perhaps you should know who you are talking about before complaining about your inability to read a sentence. he was quite clear.
your post was unnecessary...
i know who he is & i agree that he's a very informative member of this board. nonetheless, he was not very clear in his reply to the question asked. so, i kindly asked him to reiterate it. he replied arrogantly so i took offense. all he had to do was word his sentence fragment properly so that i could understand it. like i said before, it was unclear to someone who has not done this mod. had i already done this, i would have understood his quick reply. i did nothing wrong. so, please don't reprimand me simply b/c i took offense to what your fellow post ***** replied to me. i may not be as revered around here as either of you, but i always chime in whenever i can be helpful to anyone. can't we all just get along?
Old 07-11-2006, 12:17 PM
  #17  
⎝⏠⏝⏠⎠
 
mysql101's Avatar
 
Join Date: Apr 2004
Location: USA
Posts: 8,625
Received 5 Likes on 4 Posts
Originally Posted by dgrx8
your post was unnecessary...
...he was not very clear..he replied arrogantly ..i took offense. ...i took offense to what your fellow post ***** replied ...


can't we all just get along?
Sounds like you're the one who can't get along.
Old 07-11-2006, 12:19 PM
  #18  
Administrator
 
zoom44's Avatar
 
Join Date: Jul 2002
Location: portland oregon
Posts: 21,958
Received 115 Likes on 88 Posts
since im the admin my posts are necesssary whenever i feel that someone is being troublesome. your post "if he is to be helpful to anyone" suggested that he was other wise which is not the case. you misunderstood- thats fine. there was no need to bash him for the misunderstanding. as for the post ***** and fellow- well i may be a post ***** by sheer volume but post ****** genrally arent considered helpful- jeff and i both are. fellows is a bit of areach since jeff and i have had our share of disagreements. but i think we both at least respect each other- your previous post and the last are exhibiting a lack of it.
Old 07-11-2006, 12:25 PM
  #19  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
Originally Posted by zoom44
since im the admin my posts are necesssary whenever i feel that someone is being troublesome. your post "if he is to be helpful to anyone" suggested that he was other wise which is not the case. you misunderstood- thats fine. there was no need to bash him for the misunderstanding. as for the post ***** and fellow- well i may be a post ***** by sheer volume but post ****** genrally arent considered helpful- jeff and i both are. fellows is a bit of areach since jeff and i have had our share of disagreements. but i think we both at least respect each other- your previous post and the last are exhibiting a lack of it.

ok...
Old 07-14-2006, 10:25 AM
  #20  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
Originally Posted by MazdaManiac
Pull the harness connector to the solenoid. 7 seconds and no VFAD (or CEL or vacuum leak).
VFAD is pointless.
Originally Posted by mysql101
Just clamp the hose off, or tie it into a knot. The added noise is trivial, and you shouldn't expect much from doing this.
which of these 2 would be the better solution?

-simply disconnecting the solenoid
or
-blocking the hose path?
Old 07-14-2006, 10:55 AM
  #21  
Administrator
 
zoom44's Avatar
 
Join Date: Jul 2002
Location: portland oregon
Posts: 21,958
Received 115 Likes on 88 Posts
disconnecting the solenoid
Old 07-14-2006, 01:31 PM
  #22  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
^ 2x
Old 07-14-2006, 02:26 PM
  #23  
Registered User
 
Fadeproof's Avatar
 
Join Date: Jun 2006
Posts: 5
Likes: 0
Received 0 Likes on 0 Posts
Is there any gains from doing this and if so can some post a pic or diagram so I dont screw up my new ride?
Old 07-14-2006, 03:56 PM
  #24  
FN GR8
 
dgrx8's Avatar
 
Join Date: Apr 2005
Location: Miami
Posts: 423
Likes: 0
Received 1 Like on 1 Post
Originally Posted by Fadeproof
Is there any gains from doing this and if so can some post a pic or diagram so I dont screw up my new ride?
i just did this today so i can't really tell, although i'm not expecing much other than better mileage... but, there is plenty of info on this mod if u do a search for VFAD or VFAD SOLENOID...
Old 07-14-2006, 05:52 PM
  #25  
Banned
iTrader: (3)
 
MazdaManiac's Avatar
 
Join Date: Oct 2003
Location: Under my car
Posts: 16,386
Likes: 0
Received 24 Likes on 21 Posts
It won't improve anything - especially mileage.
It just makes the car a bit noisier.


You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: How to perform a vfad-sectomy?



All times are GMT -5. The time now is 05:12 AM.