EGR...can I ditch it?

V6 Technical/Performance Discussions
Post Reply
SloGsr
Regular Member
Posts: 51
Joined: December 16th, 2005, 6:21 pm
Location: Bend OR U.S.A.

EGR...can I ditch it?

Post by SloGsr »

I am sure this subject comes up often but I would appreciate any help I can get.
I have a 2.5 swapped into my GS and I would like to bypass the EGR valve if possible and maybe even remove it from the vehicle and just bolt a plate over the hole.
It is to my understanding that the EGR (exhaust gas recirculation ) valve does just as the name implies and re routes used gasses through the intake therefore reducing horsepower. Please correct me if I am wrong and also if any one knows if they are beneficial and how so.
User avatar
mxmaz
Regular Member
Posts: 1116
Joined: May 4th, 2004, 2:01 am
Location: Canada

Post by mxmaz »

You can remove it but you will get a constant check engine light and could cause you to fail e-tests(if you have them where you live).
User avatar
jschrauwen
Forum Moderator
Posts: 6052
Joined: September 27th, 2003, 2:01 am
Location: Frankford, Ontario, Canada
Contact:

Post by jschrauwen »

mxmaz wrote:You can remove it but you will get a constant check engine light and could cause you to fail e-tests(if you have them where you live).
CEL light may not be an issue since he's runing a KLDE engine and I don't believe I got any CELs when running my KL01 ECU. That's assuming he's running the correct ECU for his KLDE.
As Maz say's, it could have negative side effects wrt emissions tests. Most opt to remove it, indicating potential HP gains which I'm not aware of the specifics. Emissions tests are passable without an EGR system provided eveything else is in a proper state of tune.
'92 GS-ZE - sold, '95 GS - sold, '02 Protege LX - Daughter, '00 Audi A4 2.8 QTip, Ducati TT2
Image
90 JDM RHD 300ZX TT - 572.1 RWHP | 590.0 RWTQ | 21 PSI | Pump gas
SloGsr
Regular Member
Posts: 51
Joined: December 16th, 2005, 6:21 pm
Location: Bend OR U.S.A.

Post by SloGsr »

I don't have any emissions test what so ever here in central Oregon. Basically if you have $56 you can register anything with a VIN so I am not worried about that aspect but also would like to find a way around setting off the CEL. As big as a pain in the a-- as they can be they can also be of help, but if it were always on I wouldn't know if it had thrown another code.....I know I am running a 2.5 ECU but I don't know the code or model number? can anyone tell me where to find that. I don't mean to be so ignorant but the ECU I acquired was from Ebay so I don't have a direct source of what it might be.
NOTHING
Junior Member
Posts: 24
Joined: July 20th, 2004, 2:01 am
Location: BAYAMON,PUERTO RICO

Post by NOTHING »

everybody loves ditchin their egr's, now the funny thing is theirs no reason why, it actually helps alot, when open it richens yours afr those gases r very flamable so they make u run richer helps full economy alot, plus if u use your mind and r bored enough u can use it 2 your advantage in certain circumstances.......but we'll talk about that crap someother time when im bored enough 2 wanna write more :evil:
SloGsr
Regular Member
Posts: 51
Joined: December 16th, 2005, 6:21 pm
Location: Bend OR U.S.A.

Post by SloGsr »

The only reason I wanted to ditch it is because I figured that along with those flammable gases that it is sending through it is also sending other things like soot and carbon build up and worse case scenario it could send oil or fragments of a damaged part through again. Just a thought though
User avatar
slimmyslim1420
Regular Member
Posts: 381
Joined: October 22nd, 2005, 12:22 pm
Location: Tennessee

Post by slimmyslim1420 »

I would definately like to hear more about those advantages and situations if you don't mind NOTHING. I'm always looking for ways to get a little more power or kick outta my engine.
1992 GS ZE swap 94 dash swap drilled and slotted rotors full ceramic pads CS SS clutch and brake lines KL-36 ecu zx-2 tokico struts eibach springs short shifter Tenzo exhaust Hi flow cat 2.5 in piping
User avatar
PATDIESEL
Senior Member
Posts: 4476
Joined: August 13th, 2001, 2:01 am
antispam: ~SPAM*SUX~
Location: Atlanta, GA.

Post by PATDIESEL »

It is not as much of a gain as you might think. Also, the possibility of it putting fragments back into the combustion chamber are not really a concern since they would have to be awefully small. If you had something passing through it would most likely be a huge problem the first time.

If you have a KL-DE from an American car you will get a CEL light if you take the EGR off. There is no way to trick the car into thinking it is still there.

Also, for all the work it would take I'd spend my money on some bushings, a strut bar, CAI or something else cheap that would add some speed.
Image
ZE -strait neck,headers,2.5 exhaust,pheno spacers,lower cross member,GC coils,MS struts,Brembo slotted rotors,filled MS mounts,SS brake/clutch lines, CAI,to rear bat reloc,Hella headlamps,Hella DE fogs 180WHP
SloGsr
Regular Member
Posts: 51
Joined: December 16th, 2005, 6:21 pm
Location: Bend OR U.S.A.

Post by SloGsr »

Hey guys thanx for the advice.
I have a strut bar and bushings but i'm not sure what a CAI is?
hgallegos915
Senior Member
Posts: 6451
Joined: June 19th, 2004, 2:01 am
Location: El Paso Tx U.S
Contact:

Post by hgallegos915 »

cai = cold air intake
-hec

MX-3 w/ curved neck millenia klde, boosted @ 5 psi. /bov and wastegate are good!/ nitto drag radial/ gutted interior/ millenia red top injectors, vortech fmu/aem wideband/ all bolts ons/ Car put together 100% by me. Mechanic? who needs a mechanic? ew.. real men work on their own cars!
SloGsr
Regular Member
Posts: 51
Joined: December 16th, 2005, 6:21 pm
Location: Bend OR U.S.A.

Post by SloGsr »

Lol thanx haha now I feel like an idiot. I guess if I thought about it long enough I could have figured it out huh? lol
mdavis
Regular Member
Posts: 540
Joined: May 23rd, 2003, 2:01 am
Location: Placerville, California
Contact:

Post by mdavis »

I guess NOTHING is too board to type out "two" or "are" heh.

FYI for searchers, lots of people pass smog even in Cali (like me) without a functioning EGR.
Image
GS-R SE
Fixin's
Post Reply

Return to “V6 Technical/Performance”