Previous Thread
Next Thread
New Reply
Print Thread
Joined: May 2002
Posts: 6,007
isaac
ECelica Admin
isaac
2001 Absolutely Red Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT

Joined: May 2002
Posts: 6,007
Los Angeles, CA
Jul 15, 10:38pm - #18999 
Intake Butterfly - How To Remove

Taking Out The Butterfly Valve

Linked Image

1) Ok first thing you need to do when taking out the butterfly valve is to unhook the negative battery terminal. I like to wrap something around the cable so it can't make contact with any metal by mistake!!

2) Unplug the Mass air sensor wiring first that is on the top of the air box towards the Intake tube. See diagram.

3) Pull the large and small vacuum hoses off of top of air box to (see diagram).

4) Slide sensor off of air box that has two vacuum hoses and wiring attached to it. See diagram. (the two hoses and wire can be taken off to leave sensor attached to top section of the airbox also.)

5) Loosen the clamp that is around the Intake hose and attaches to the air box. (Phillips screwdriver) push the Intake tube towards the back of the car to slide tube off.

6) Release clamps from the top of the air box that are shown in the diagram.

7) You should now be able to lift the top of the air box by gently working it off towards the back of the car. (there are groves on the front that it rest in)

8) Take out the Air Filter.

9) Pull off the hose that is attached to the butterfly valve and plug the end of the hose up!

10) Slide the Butterfly valve straight up. It has two clips on the bottom (can be reached by hand under bottom of Intake) that need moved slightly to allow the butterfly to come loose.

11) Place the butterfly hose back in the same slot that it came out of. As to not interfere with other moving parts of the motor.

12) Place Air Filter back in air box.

13) Place top half of air box in proper position. Make sure no wires, hoses, or clamps are stuck in between top and bottom halves. This may take a few moments to slide air box in proper location. Makes sure it is sitting in slots towards the front of the air box before going further.

14) Re-clamp the top of the box, with the three clamps.

15) Reattach large hose and small hose to air box.

16) Slide vacuum sensor with the Hoses and wiring attached to in back into the original slot.

17) Reattach the Intake tube to the air box and refasten hose clamp.

18) Reattach the Mass airflow wiring to the Mass air flow meter.

Joined: Aug 2002
Posts: 92
vvtlr
Member
vvtlr

Member
2000 Toyota Celica

Joined: Aug 2002
Posts: 92
Aug 16, 12:49am - #19000 
is there a hp increase by taking this out? and is there a dissadvantage when taking this out?


2000 GTS
BOMEX FRONT BUMPER
R2 SIDES (MOLDED-IN)
BUDDYCLUB BACK BUMPER
18" WHITE ADR GT SPORT
Joined: May 2002
Posts: 6,007
isaac
ECelica Admin
isaac
2001 Absolutely Red Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT

Joined: May 2002
Posts: 6,007
Los Angeles, CA
Aug 15, 1:50pm - #19001 
The "butterfly is a plastic part located inside the air box that is recognizable by the small white flap in the middle. This is a very minor modification which has not shown any significant power gains but results in a deeper sound when accelerating it was placed there by Toyota to help MPG by reducing the amount of air that enters the engine & to keep the car a little quieter at RPMs below 3500.

Positives: Deeper Sound, Little Bit Better Acceleration
Negatives: Possible Harder To Start Car

Some Dyno Runs...


[Linked Image]
It's not just your imagination...
Your day really does go by twice as fast while on EverythingCelica.com
Joined: Aug 2002
Posts: 37
Josh Reel
Member
Josh Reel
Member

Joined: Aug 2002
Posts: 37
overland park, ks
Sep 8, 6:33pm - #19002 
does the gt also have it...and do you take it out hte same


2003 Toyota Tundra
2000 Jeep Wrangler
Joined: May 2002
Posts: 6,007
isaac
ECelica Admin
isaac
2001 Absolutely Red Toyota Celica GT
ECelica Admin
2001 Toyota Celica GT

Joined: May 2002
Posts: 6,007
Los Angeles, CA
Sep 8, 9:08pm - #19003 
the location is the same on both the GT and the GTS

Joined: Aug 2002
Posts: 37
Josh Reel
Member
Josh Reel
Member

Joined: Aug 2002
Posts: 37
overland park, ks
Sep 10, 11:03am - #19004 
thanks


2003 Toyota Tundra
2000 Jeep Wrangler
Joined: Aug 2003
Posts: 36
ERIC
Member
ERIC
2003 Silver Toyota Celica
Member
2003 Toyota Celica

Joined: Aug 2003
Posts: 36
VA
Aug 25, 11:28am - #19005 
will i get less mpg?
how big of a change?
about how long does it take?

thanks for the help

Joined: Oct 2003
Posts: 2
netrunner
New Member
netrunner

New Member
2000 Toyota Celica GT

Joined: Oct 2003
Posts: 2
New York
Oct 13, 7:56pm - #19006 
You shouldn't get any less mpg but you should get atleast a 2hp or a lil more gain because your engine will be getting more air with less restriction thumbsup The process took me only 5-10 minutes if that.

Joined: Jul 2004
Posts: 7
sezniko
New Member
sezniko

New Member
2001 Toyota Celica

Joined: Jul 2004
Posts: 7
Missouri
Apr 2, 3:25pm - #19007 
I removed mine last night.Took me about an hour(I took my time and cleaned the filter box).The only problem I had was takeing out the butterfly valve peice and one of the clips broke,but it won't hurt anything.Thanks for the guide


As long as you do everything right no one will know you did anything at all
Join the conversation - Register Now or Log In to add your comment


Moderated by  isaac 

Member Spotlight
bigdru694ever
bigdru694ever
2002 Toyota Celica GT
Hialeah Gardens, FL

Posts: 44
Joined: February 2004
Show All Member Profiles 
Shout Box
Recent Topics
White plug in next to hood release
by Celli4Life. 05/26/2017 7:32 PM
02' Celica GT pictures - New member
by Daweed. 05/21/2017 3:34 PM
Engine Developed Slight Tapping Noise
by ciaranleeman. 05/17/2017 12:49 AM
Apexi N1 exhaust
by Felix0697. 05/15/2017 4:58 PM
Toyota celica GT 2004 - 6 gears?
by Arve2afm. 05/13/2017 5:33 AM
FS: Custom OEM Tsunami Badge
by 00BlkCeli. 05/08/2017 11:11 AM
Looking for parts sources
by Calparts. 05/05/2017 11:18 PM
2004 GTS my 6th gear going to neutral by itself
by CapistranCelica. 05/05/2017 3:16 AM
Customize Your Toyota Celica Privacy Policy · About · Contact
Privacy Policy · About · Contact
CelicaHobby.com is an independent Toyota Celica enthusiast website. CelicaHobby.com is not sponsored by or affiliated with Toyota Motor Sales, USA, Inc. in any way. The Toyota and Celica names and logos are trademarks owned by Toyota Motor Sales, USA, Inc.
© CelicaHobby.com, 2001-2017
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Snapshot build 20170512)