EGR System
Thread Starter
Burning Brakes
Joined: Sep 2010
Posts: 799
Likes: 26
From: Lexington Park Maryland
EGR System
Has anyone removed the EGR system on their car? What are the Pro's and Con's doing so? One I can see immediately is a cleaner looking engine bay. Thank you.
Safety Car
Joined: Aug 2009
Posts: 3,751
Likes: 275
From: Melbourne, Victoria, Australia
Con's. unless you remove the check egr flag in the program you will get EGR codes when on the highway after around 10 mins.
The typical thing people go on about is hotter temperatures, however i ran my EGR disconnected on my 85 for many years without a problem.
I cannot see how exhaust gas being returned to combustion chamber lowers temperatures.
You will need to get the ecm chip modified or if you use tuner pro and the interface cables etc, then you can easilly remove the EGR check tick and you will never get EGR codes again.
The software can be downloaded from tunerpro.
You will need to download the bin and definition files for your year vette first.
http://www.tunerpro.net/
The moates ALDL adapter cable $80 and Ostrich 2 emulator $175
https://www.moates.net/gm-19851995-c-64.html
Last edited by gerardvg; Mar 30, 2014 at 11:09 PM.
Safety Car
Joined: Aug 2008
Posts: 4,344
Likes: 48
From: San Marcos CA
You could invest in tuning software to get rid of it, but why on a street car? May as well let it function and reduce the formation of oxides of nitrogen.
NOx forms during combustion temperature spikes. usually from high engine temps, too much ignition timing during lean operation, lean operation, high compression, low overlap on cam timing, or some combination of these events. running 1.6 rocker arms, using a cam with more duration/overlap, and programming the fans to come on sooner will reduce NOx too, but I see no reason to throw out a perfectly functioning EGR valve on any engine up to about 400 hp.
Last edited by mike100; Mar 30, 2014 at 11:18 PM.
