The Subaru SVX World Network   SVX Network Forums
Live Chat!
SVX or Subaru Links
Old Lockers
Photo Post
How-To Documents
Message Archive
SVX Shop Search
IRC users:

Go Back   The Subaru SVX World Network > SVX Main Forums > Technical Q & A

Reply
 
Thread Tools Display Modes
  #1  
Old 01-20-2011, 04:15 PM
It's Just Eric's Avatar
It's Just Eric It's Just Eric is offline
Missing in action
 
Join Date: Oct 2005
Location: Tuckerton, NJ, USA
Posts: 3,027
Send a message via AIM to It's Just Eric
Registered SVX
quick egr question

Does removing the egr system have any negative side effects? (besides slowly killing every endangered species i drive past)
see, my car has been having a mystery problem...It's down on power under load at low rpm. It stutters, like it has a miss or it's pulling timing, untill about 2000 rpm or so, then works just fine
I've read the egr is only open at low rpm... could it be causing it to run lean and pull timing?
__________________
R.I.P Cool Signature.
You're gone but not forgotten. I mean, sure, I kindof don't remember some of the finer details..but I remember you were funny, and at one point you said spaghetti in Dutch....but definantly not forgotten

Reply With Quote
  #2  
Old 01-20-2011, 04:46 PM
92snowmachine 92snowmachine is offline
Registered User
 
Join Date: Dec 2009
Location: Denver, Colordado
Posts: 828
Registered SVX
Re: quick egr question

Removing your egr could have a couple, although minor, side effects. One would be a slight decrease in gas mileage if you do a lot of coasting while you drive, this is when the egr effectively decreases the displacement of the cylinders by recirculating exhaust gases. Another being the likeliness to have detonation since the purpose of the egr is to reduce nox emissions by reducing cylinder temperatures then it also helps to reduce detonation in higher compression engines. Neither of these is likely to have a large affect on your car (i have taken the egr off of a couple of cars without problem) just letting you know some possible downsides. If you want to see if your egr is the problem just unplug it or make a solid gasket out of a pop can and slide it underneath, if your problem is still present then look elswhere.
Reply With Quote
  #3  
Old 01-20-2011, 05:33 PM
It's Just Eric's Avatar
It's Just Eric It's Just Eric is offline
Missing in action
 
Join Date: Oct 2005
Location: Tuckerton, NJ, USA
Posts: 3,027
Send a message via AIM to It's Just Eric
Registered SVX
Re: quick egr question

See, I have the egr system removed completely. there's no hole in the exhaust manifold (mad jdm yo) and i made a block off plate for the intake manifold. I noticed on the jdm intake there's no holes for the bolts tapped in, but the hole for the exhaust gas to enter is there. Im curious if I should just pull off my block off plate or what...
the big question is...is the detonation effect enough to cause the engine to pull timing in the first place?
__________________
R.I.P Cool Signature.
You're gone but not forgotten. I mean, sure, I kindof don't remember some of the finer details..but I remember you were funny, and at one point you said spaghetti in Dutch....but definantly not forgotten

Reply With Quote
  #4  
Old 01-20-2011, 06:03 PM
icingdeath88's Avatar
icingdeath88 icingdeath88 is offline
some sort of nerd. some sort.
Subaru Silver Contributor
 
Join Date: Aug 2009
Location: Tampa, FL
Posts: 3,560
Registered SVX
Re: quick egr question

Quote:
Originally Posted by It's Just Eric View Post
the big question is...is the detonation effect enough to cause the engine to pull timing in the first place?
If the JDM engine already has no EGR and works just fine, then probably not...
__________________
'94 Laguna Blue LSi ~159k.......JDM ultra short-geared 3.900 STi Version 7 6-speed w/ Cobb shortshifter, ECUtune 244,8.1mm/256,9.1mm i/e cams, group N motor mounts, '97 grille, JDM clear corners, Momo JDM Legacy GT steering wheel, apkarian's LED tails, silver STi BBS wheels, PWR radiator, redstuff pads f/r, drilled/slotted rotors, bontragerworks rsb #18, Koni/GC 450f/375r coilovers, Megan Racing adjustable lateral links, KMac c/c plates, Stebro exhaust, ECUtune 1v5, Optima battery in the trunk where it belongs. Turbo project

'97 Ebony LSi ~137k #036.......Power mode mod, JDM clear corners, BBS wheels. AUX/pocket mod

Now a mod "over there" ............Photo album
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 08:00 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
© 2001-2015 SVX World Network
(208)-906-1122