EGR Delete ?'s
04-18-2009, 10:42 PM
#1
1st Gear Member
Thread Starter
Join Date: Mar 2008
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EGR Delete ?'s
I would like to know some info on this. I have the EGR unhooked on the car right now and was wondering if it could be easily deleted. The car has a jumping RPMs right now when you come to a stop and kinda feels like it lost some power (Seat-of-the-pants feeling). Any info or how-to's will help.
Matt
Matt
04-19-2009, 01:52 AM
#2
3rd Gear Member
Join Date: Oct 2007
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Posts: 885
cap off the egr plate at the manifold, cap off the threaded egr portion at the manifold, then just delete the actualy egr tube, and valve, and the round shaped black plastic thing, along with the box shaped sensor with two vaccum lines running to it..
then just reroute the factory vaccum lines.
then just reroute the factory vaccum lines.
04-19-2009, 09:15 AM
#7
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Join Date: Feb 2007
Location: state of confusion
Posts: 7,635
At WOT, you don't gain anything by disabling or eliminating EGR because any external EGR is turned off under that condition anyway. There might be a small benefit in part-throttle response in some specific situations, but that's about it from the performance side.
I say "external EGR" in order to separate the exhaust that flows through the EGR valve from the "natural EGR" that happens anyway due to valve timing and intake/exhaust system pressure differences.
Fuel economy-wise, you will lose a little of whatever mpg you're currently getting, maybe as much as 10%. Engine operating temperature may rise a bit (this mostly matters if your cooling system is marginal). And optimum spark timing needs to change.
Norm
I say "external EGR" in order to separate the exhaust that flows through the EGR valve from the "natural EGR" that happens anyway due to valve timing and intake/exhaust system pressure differences.
Fuel economy-wise, you will lose a little of whatever mpg you're currently getting, maybe as much as 10%. Engine operating temperature may rise a bit (this mostly matters if your cooling system is marginal). And optimum spark timing needs to change.
Norm
Last edited by Norm Peterson; 04-19-2009 at 09:19 AM.
04-19-2009, 10:00 AM
#8
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Join Date: Feb 2006
Location: Virginia
Posts: 11,786
04-19-2009, 10:06 AM
#9
6th Gear Member
Join Date: Feb 2006
Location: Virginia
Posts: 11,786
At WOT, you don't gain anything by disabling or eliminating EGR because any external EGR is turned off under that condition anyway. There might be a small benefit in part-throttle response in some specific situations, but that's about it from the performance side.
I say "external EGR" in order to separate the exhaust that flows through the EGR valve from the "natural EGR" that happens anyway due to valve timing and intake/exhaust system pressure differences.
Fuel economy-wise, you will lose a little of whatever mpg you're currently getting, maybe as much as 10%. Engine operating temperature may rise a bit (this mostly matters if your cooling system is marginal). And optimum spark timing needs to change.
Norm
I say "external EGR" in order to separate the exhaust that flows through the EGR valve from the "natural EGR" that happens anyway due to valve timing and intake/exhaust system pressure differences.
Fuel economy-wise, you will lose a little of whatever mpg you're currently getting, maybe as much as 10%. Engine operating temperature may rise a bit (this mostly matters if your cooling system is marginal). And optimum spark timing needs to change.
Norm
04-19-2009, 10:16 AM
#10
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Thread Starter
Join Date: Mar 2008
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Posts: 84
Do you guys think that is what is cause my car to rev up and down from like 500rpms to 1000 rpms at idle when I come to a stop? I have a plug in the header and plug the 2 hoses coming off the black plastic piece, but haven't found a way to plug the place on the intake.