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2002_GTS
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2002_GTS Jul 23, 4:50am - #229758 

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2002 Toyota Celica

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Posts: 21
San Diego
Question about DC Headers?

I just got my headers yesterday and i was reading the instructions and it says that they are only for vehicles that don't have (non-EGR). EGR??? i called the DC Sports and they told me it won't work on my car because my car has EGR.
So do you guys know anything about this, because these headers are the only ones that are available from DC.
Any help would be appreciated Thanx.

Igor
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JSPITZ
Senior Member
JSPITZ Jul 23, 12:15pm - #229759 

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2004 Toyota Celica

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SPRINGFIELD, VA
What is EGR

[Linked Image]
HONDA HUNTER
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Speed4TheNeed
Caleb
Speed4TheNeed Jul 23, 12:43pm - #229760 

Caleb
2000 Toyota Celica

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New Orleans, LA
"The EGR valve is the main emissions control component in the exhaust gas recirculation system. The valve is located on the Intake manifold, and opens a small passageway between the exhaust and Intake manifold to allow a metered amount of exhaust to flow back into the engine. This reduces combustion temperatures and helps control the formation of oxides of nitrogen. The EGR valve is opened by the application of vacuum to its control diaphragm. Some also require a certain amount of exhaust back pressure before they'll open. On newer vehicles, the valve is electronic and uses one or more solenoids or a small stepper motor. The valve should remain closed while the engine is cold and at idle. It should only open once the engine has warmed up and is running at part-throttle. If the valve sticks shut (or is disconnected), NOX emissions will soar and detonation will often result (See Detonation and Spark Knock). If it sticks in the open position or fails to close all the way, it acts like a vacuum leak resulting in a rough idle, hesitation and possible stalling."

http://autorepair.about.com/cs/generalinfo/l/bldef_165.htm

thumbsup
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Speed4TheNeed
Caleb
Speed4TheNeed Jul 23, 12:46pm - #229761 

Caleb
2000 Toyota Celica

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Posts: 6,372
New Orleans, LA
egr valve in the 7th gen celica gts:
1870126480-egrvalve.jpg
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Speed4TheNeed
Caleb
Speed4TheNeed Jul 23, 12:49pm - #229762 

Caleb
2000 Toyota Celica

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New Orleans, LA
Originally Posted by JSPITZ
What is EGR


EGR = Exhaust Gas Recirculation thumbsup
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QTRMLR_1
Specialist
QTRMLR_1 Jul 23, 1:21pm - #229763 

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2002 Toyota Celica

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Los Angeles, CA
I'm thinking the DC Sports person you talked to doesn't know Jack about his own product. Lucky tested the DC Sports header for the GTS and got 10.3 peak whp.

I get my kicks on EC.
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ragingpaseo
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ragingpaseo Jul 23, 3:17pm - #229764 
2003 blue Toyota Celica
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2003 Toyota Celica

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towson, md
EGR is for auto tranny...
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eddie_725
Senior Member
eddie_725 Jul 23, 4:10pm - #229765 
1985 Silver Toyota Celica
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1985 Toyota Celica

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Miami, Fl
2002_Gts
You have 19s on your ride thats sick people say 19 are bad for the ride and slow you down

"if pimpin' is dead then I'm bring it back
mata fact it never died so I take that back" -Lil Wayne-
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Lucky_317
Specialist
Lucky_317 Jul 23, 7:43pm - #229766 

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2000 Toyota Celica

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Fontana, CA
I think they are actually refering to the setup on the 2004 gts where it has an extra sensor or somthing that would make it not possible to use this header. they mentioned that cause they are thinkin about releasing a new header for that version also. could be total BS dunno. never looked into it. I just know thats what they told me. thumbsup

Best 60' 1.959 best 1/4 - 13.7 @ 101mph
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ragingpaseo
Specialist
ragingpaseo Jul 23, 8:02pm - #229767 
2003 blue Toyota Celica
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2003 Toyota Celica

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towson, md
i have EGR in my auto 95' paseo...
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2kVeilsideGTS
Member
2kVeilsideGTS Jul 23, 8:06pm - #229768 

Member

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Jacksonville, FL
so i have this header in my room, will it fit on my 00 GTS? i was planning on installing it this weekend
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ragingpaseo
Specialist
ragingpaseo Jul 23, 8:08pm - #229769 
2003 blue Toyota Celica
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2003 Toyota Celica

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towson, md
do you have auto? i don't see why not...
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Tru_gts
Senior Member
Tru_gts Jul 24, 12:41am - #229770 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
Are you saying that only auto transmissions have egr engines?

To my girl Truboo
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Tru_gts
Senior Member
Tru_gts Jul 24, 12:46am - #229771 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
I think both auto and stick trans have egr.

To my girl Truboo
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Tru_gts
Senior Member
Tru_gts Jul 24, 12:56am - #229772 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
and im installing my header this weekend also.

To my girl Truboo
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truboo
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truboo Jul 24, 1:13am - #229773 
2002 black Toyota Celica
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2002 Toyota Celica

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frisco
which years of the celica have the egr?

salina loves truman. *muah* baby

truboo loves tru_gts
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Tru_gts
Senior Member
Tru_gts Jul 24, 1:22am - #229774 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
All of the 7th gen

To my girl Truboo
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truboo
Senior Member
truboo Jul 24, 1:24am - #229775 
2002 black Toyota Celica
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2002 Toyota Celica

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frisco
oh thanks. kiss

salina loves truman. *muah* baby

truboo loves tru_gts
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bmw52786
Specialist
bmw52786 Jul 24, 3:46am - #229776 

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2001 Toyota Celica GT

Joined: May 2003
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Orlando/Gainesville, FL
wait im confused now... r you sayin that i CANT install DC headers on my 01 auto gt????? confused idunnoconfused

IF YOU POST IT -- THEY WILL COME
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Speed4TheNeed
Caleb
Speed4TheNeed Jul 24, 6:11am - #229777 

Caleb
2000 Toyota Celica

Joined: Aug 2003
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New Orleans, LA
Originally Posted by Tru_gts
I think both auto and stick trans have egr.


i drive a 6-spd gts and i have an egr valve..it got in my way when i was putting in the updated lift bolts (since i have an '00 i have a tsb on it) thumbsup
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Clos
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Clos Jul 24, 6:42am - #229778 
2000 Spectra Blue Toyota Celica
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2000 Toyota Celica

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Alexandria, VA
but i thought lucky had a 2000 GTS and he had no problem with it im gettin my dc header tomorow wtf is this all about im strating to get second thoughts
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Clos
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Clos Jul 24, 6:46am - #229779 
2000 Spectra Blue Toyota Celica
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2000 Toyota Celica

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Alexandria, VA
fuck it i dont care i belive in Lucky, and if he had them on then they most work, ill post more on this after i install mine
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Speed4TheNeed
Caleb
Speed4TheNeed Jul 24, 6:46am - #229780 

Caleb
2000 Toyota Celica

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New Orleans, LA
^^ dc makes more than 1 header...they make many headers, actually.

check to make sure which one you bought thumbsup
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Clos
Specialist
Clos Jul 24, 6:47am - #229781 
2000 Spectra Blue Toyota Celica
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2000 Toyota Celica

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i know the ones for GTS is like 4403 and those are the ones im gettin tomorow
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Speed4TheNeed
Caleb
Speed4TheNeed Jul 24, 6:52am - #229782 

Caleb
2000 Toyota Celica

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New Orleans, LA
^^ if thats the right part #, then it's all good.

so they finally got released after all this time? i'm behind on things i guess.
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tgts2000
Senior Member
tgts2000 Jul 24, 7:10am - #229783 

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2002 Acura RSX-S

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MN
Yea they're finally out, I have mine right now just waitin on the new gasket so I can install it!!
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stefanoc
Specialist
stefanoc Jul 24, 9:18am - #229784 

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2002 Toyota Celica

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CA
dude, as long as ur headers are for a 00- celica gts, it will work fine. why would they release headers that dont work? wut took them so long in the beginning to make them?
answer: install it if ur car is 00-02.
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2002_GTS
Member
2002_GTS Jul 24, 9:34pm - #229785 

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2002 Toyota Celica

Joined: May 2004
Posts: 21
San Diego
i was just told by toyota that 2000-2002 don't have an EGR and 2003-2004 do so i guess if you have a 2003 and 2004 it won't work i guess DC will come out with the header that will work with the EGR.

igor
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Tru_gts
Senior Member
Tru_gts Jul 24, 10:55pm - #229786 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
thumbsup good to know thanks

To my girl Truboo
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bmw52786
Specialist
bmw52786 Jul 25, 6:34am - #229787 

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2001 Toyota Celica GT

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Orlando/Gainesville, FL
Originally Posted by bmw52786
wait im confused now... r you sayin that i CANT install DC headers on my 01 auto gt????? confused idunnoconfused


still confused, will someone answer my question??? wtf

IF YOU POST IT -- THEY WILL COME
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QTRMLR_1
Specialist
QTRMLR_1 Jul 25, 9:37am - #229788 

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2002 Toyota Celica

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Los Angeles, CA
Let's solve the mystery of the GTS DC Header, folks.

Ok here is a summary of information so far:
On the DC Sports website: they say the header with part number THC4403 works for 00-03.
Someone called "Toyota" and spoke to some unspecified person who said the 00-02 GTS don't have EGR, while the 03 and 04 GTS do have EGR.
Some ecelica members are suggesting that all of the 7th Gens have EGR.
One ecelica member has brought up the possibility that the 04 GTS has a special sensor/outlet for EGR.
One ecelica member asserts EGR is for auto only.
One ecelica member asserts EGR is for stick and auto.


----------------------------------------------------------
Ok, here is my best attempt to logically approach the evidence:

So we have two main possibilities IMO.
Either DC Sports is right, and the Toyota guy talked to was wrong.
Or DC Sports does not know everything about all the years of the GTS, and made a mistake on their website by posting 00-03 when they should have posted 00-02.

These conclusions are not helpful:
It could be true that EGR is on all 7th gens.
It could be true that EGR is only on some years.
It could be true that some years have a special sensor/outlet on the header.
It could be true EGR has nothing to do with transmission, or it could have something to do with transmission.

Although it would be satisfying to one's curiosity to know what EGR applies to, the main deciding factor in functionality to be resolved:
Which years or transmissions in particular have that sensor on the stock header.

So...
If there is a special sensor/outlet on your stock header, chances are the DC Sports GTS header won't work for you.
If there is NOT a special sensor/outlet on your stock header, chances are the DC Sports GTS header WILL work for you.

Yay, hey that's simple. thumbsup
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QTRMLR_1
Specialist
QTRMLR_1 Jul 25, 10:11am - #229789 

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2002 Toyota Celica

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Once we hear from at least one person from each year/transmission on whether they have that special sensor/outlet on their stock header, we can conclusively tell someone if the THC4403 header will work for them. Once we have all data (in a 5x2 matrix), we may be able to conclude that transmission is irrelevant.

Let's start posting guys...

I get my kicks on EC.
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bmw52786
Specialist
bmw52786 Jul 25, 6:10pm - #229790 

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2001 Toyota Celica GT

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Orlando/Gainesville, FL
thanks QTRMLR_1... now all i need is someone to respond that has installed DC headers on a auto???

IF YOU POST IT -- THEY WILL COME
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QTRMLR_1
Specialist
QTRMLR_1 Jul 25, 6:51pm - #229791 

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2002 Toyota Celica

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Los Angeles, CA
yep, that's right bmw52786. That's all you need to know. You could try looking for a sensor or outlet on the stock header or anything that is different than the plain DC Sports header...anything to suggest that they are fundamentally different in components (we already know the design is different of course). It might be hard to see your whole header b/c of the heat shield etc.

I get my kicks on EC.
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QTRMLR_1
Specialist
QTRMLR_1 Jul 25, 7:05pm - #229792 

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2002 Toyota Celica

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Posts: 1,376
Los Angeles, CA
Let's see if deductive reasoning will help us:

We're talking about THC4403 so we will assume for this discussion that everyone has a GTS.
Ok, we know Lucky installed the header and tested it on his car, so it must work on his car duh. He has an 00 Stick.

To start with:

----Stick Auto
00 Yes
01
02
03
04

There is overlap between the DC Sports statement and the Toyota statement (00-03, 00-02), so we can assume that 00-02 is ok for stick since Lucky tested fine with his 00 stick, and we know the stock header didn't change from 00-02.

So now we have:

----Stick Auto
00 Yes
01 Yes
02 Yes
03
04

That's as far as we can go for now till we get more information from people on their header or what their stock header looks like. If one person says Auto in any of the years 00,01,02 works, then all the Autos in 00-02 will be Yes. If one says No, they will all be No for those years.
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Tru_gts
Senior Member
Tru_gts Jul 25, 10:36pm - #229793 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
thumbsup
1870130889-8649-3.jpg

To my girl Truboo
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Tru_gts
Senior Member
Tru_gts Jul 25, 10:39pm - #229794 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
YES IT WORKS ON MY 2002 GTS AUTO

To my girl Truboo
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Tru_gts
Senior Member
Tru_gts Jul 25, 10:49pm - #229795 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
----Stick Auto
00 YES
01 YES
02 YES YES
03
04

And no, i do not have a sensor on my 2002 GTS Auto/Sportronic stock header.

To my girl Truboo
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Tru_gts
Senior Member
Tru_gts Jul 25, 10:51pm - #229796 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
and yes, i have the THC4403 DC sports 4-2-1 ceramic header.

To my girl Truboo
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Tru_gts
Senior Member
Tru_gts Jul 25, 10:55pm - #229797 
2002 Black Toyota Celica
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2002 Toyota Celica

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Frisco
i just want to get more post up, thats all smile thumbsup

To my girl Truboo
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QTRMLR_1
Specialist
QTRMLR_1 Jul 26, 12:03am - #229798 

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,376
Los Angeles, CA
using the previous logic, we now have:

----Stick Auto
00 YES YES
01 YES YES
02 YES YES
03
04

Now, if 03 Stick is YES, then 03 Auto is probably YES given DC Sports' generic statement that it will work for 00-03. This is not necessarily true as Toyota MAY have changed the Auto ONLY for 03, but the most likely scenario is that if DC Sports got it right for the 03 Stick, then they got it right for the 03 Auto. If DC Sports didn't get it right for the 03 Stick, then they probably DID NOT get it right for the 03 Auto. Also in years 00-02, we have concluded that what Toyota would do on the Stick's stock header they would do the same for the Auto's stock header. The most likely probability is that this sameness of the header between transmissions carries over to 03 and 04 as well.

So...

----Stick Auto
00 YES YES
01 YES YES
02 YES YES
03 ?x? ?x?
04 ?y? ?y?

The x's being the same is a more likely scenario than the y's being the same. However, both scenarios are likely.

If it turns out from reported data that the 03 Stick is different from the 03 Auto, or the 04 Stick is different from the 04 Auto, then we have to completely dump the above assumptions, and would have to rely soley on reported data from then on.

I had to put the ?'s in otherwise the spacing would not be right, and it also makes sense to use ?'s since the x's and y's aren't guaranteed but highly-probable scenarios.

We need an 03, and an 04 person to tell us if their stock header has a sensor somewhere on it.

Let's hear the 03 and 04 people speak up now. wave
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Larry_GTS
Specialist
Larry_GTS Aug 9, 10:16pm - #229799 
2003 Yellow/Red Toyota Celica
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2003 Toyota Celica

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Texas
anyone with an 03 ?
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Larry_GTS
Specialist
Larry_GTS Aug 10, 12:21am - #229800 
2003 Yellow/Red Toyota Celica
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2003 Toyota Celica

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Texas
everywhere I look The DC header is listed for 00-04. Is this incorrect ?
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Larry_GTS
Specialist
Larry_GTS Aug 10, 12:34am - #229801 
2003 Yellow/Red Toyota Celica
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2003 Toyota Celica

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Texas
ok I just ordered my header I looked at DC sprots website and it was listed up to 2003 NOT 2004 so if it doesn't work I havea print out stateing their website and their customer rep was wrong, and I can return it for a full refund. it should be in a few days .
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Posts: 1
Krusty
New Member
Krusty Aug 28, 7:30pm - #229802 
2002 Black Toyota Celica
New Member
2002 Toyota Celica

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Posts: 1
Austria, Europe
any news?

I got an 03 Stick, and if somebody could tell me where i have to look i will check if my car is with EGR or not..

Thanks in Advance!!
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Posts: 1,073
grcelica
Specialist
grcelica Aug 28, 8:47pm - #229803 

Specialist
2001 Toyota Celica GT

Joined: Nov 2002
Posts: 1,073
NW, PA
uh,...wow. I thought all cars, domestic, and imported, have had EGR's since the early 70's? Maybe not, but I know on V8"s in the 70's it was merely a hose and valve that went between the valve cover gasket and the air cleaner and the exhaust manifold. If I had to bet I would say all our Celicas have EGR's, but like I said, not sure. QTRMILER's reasoning seems sound to me though!
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