Running with EGR unhooked
10-10-2006, 07:56 PM
#11
3rd Gear Member
Join Date: Dec 2005
Location:
Posts: 762
RE: Running with EGR unhooked
I blocked mine off and got the check engine light so i cleared all codes with a scanner and i haven't seen it since monday morning... If it comes on again i'll let you know. So sweet 99, tell me how putting hot corbonated gasses back into the intake is a good thing? every mechanic i have talked to has said that egr valves do more harm to the car, they only are for emissions. ever think there is a reason why tuners can turn it off??
10-10-2006, 10:41 PM
#12
4th Gear Member
Join Date: Jun 2006
Location: New York
Posts: 1,178
RE: Running with EGR unhooked
ORIGINAL: AmericanRicer87I blocked mine off and got the check engine light so i cleared all codes with a scanner and i haven't seen it since monday morning... If it comes on again i'll let you know. So sweet 99, tell me how putting hot corbonated gasses back into the intake is a good thing? every mechanic i have talked to has said that egr valves do more harm to the car, they only are for emissions. ever think there is a reason why tuners can turn it off??
These new cars are made to run within a specific rpm range or they will back off the timing and lose power.
I will contact the mechanic that said having the EGR functioning cools the cylinder temps. If it does cause the cylinder temps to go up there is more likelyhood that knocking would be encounted quicker. ZI'll get back, Mark
10-10-2006, 11:05 PM
#13
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Join Date: Dec 2005
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Posts: 762
RE: Running with EGR unhooked
the carbon build up is why i blocked it off it ruined my idle control valve
ORIGINAL: sweet99
I know why tuners disable it because it will build up Carbon crud in the intake and all the way throughout it's path to the cylinders. I had both my EGR and PCV both running into a catch can on my Talon. The exhaust gasses are actually cooler than the temps that the cylinders are. You might possibly make a bit of power by disabling it, maybe not. I don't think the difference is dramatic.
These new cars are made to run within a specific rpm range or they will back off the timing and lose power.
I will contact the mechanic that said having the EGR functioning cools the cylinder temps. If it does cause the cylinder temps to go up there is more likelyhood that knocking would be encounted quicker. ZI'll get back, Mark
ORIGINAL: AmericanRicer87I blocked mine off and got the check engine light so i cleared all codes with a scanner and i haven't seen it since monday morning... If it comes on again i'll let you know. So sweet 99, tell me how putting hot corbonated gasses back into the intake is a good thing? every mechanic i have talked to has said that egr valves do more harm to the car, they only are for emissions. ever think there is a reason why tuners can turn it off??
These new cars are made to run within a specific rpm range or they will back off the timing and lose power.
I will contact the mechanic that said having the EGR functioning cools the cylinder temps. If it does cause the cylinder temps to go up there is more likelyhood that knocking would be encounted quicker. ZI'll get back, Mark
10-10-2006, 11:28 PM
#14
6th Gear Member
Join Date: May 2006
Location: Ohio
Posts: 6,448
RE: Running with EGR unhooked
ORIGINAL: ajmodelski
SO if I plug both the inlet of my EGR and the Outlet on my exhaust. Will my car run f****ed up? and, could it be simply tuned out on a factory chip if, I took it to dynojet or something?
SO if I plug both the inlet of my EGR and the Outlet on my exhaust. Will my car run f****ed up? and, could it be simply tuned out on a factory chip if, I took it to dynojet or something?
Oh and if you don't plug the intake opening for the EGR that is unmeasured air going into the system. Again that is a lean condition and car goes BOOM.
10-11-2006, 12:24 AM
#15
3rd Gear Member
Join Date: Dec 2005
Location:
Posts: 762
RE: Running with EGR unhooked
So my heck engine light came on because the car was running too lean? so if i ran 93 octane in it do you think that would get it back to running stoich?
ORIGINAL: oxfordgt
OK let me give you a quick description on how an EGR works. The egr puts exhaust gases into the intake to put it back into the combustion chamber. The gasses are non flamable and just take up space in the cyl. When it takes up that space it is less air and fuel that can get in there which keeps the cyl temp down. Now with out that dead air in the cyl and the computer not tuned for the it the cyl will still get the same amount of fuel but more air. Do you know what that means? You guessed it lean condition. Do you know what happens in a lean condition? Yup engine goes BOOM. So to answer your question you have to tune it for the EGR delete or hook it back up.
Oh and if you don't plug the intake opening for the EGR that is unmeasured air going into the system. Again that is a lean condition and car goes BOOM.
ORIGINAL: ajmodelski
SO if I plug both the inlet of my EGR and the Outlet on my exhaust. Will my car run f****ed up? and, could it be simply tuned out on a factory chip if, I took it to dynojet or something?
SO if I plug both the inlet of my EGR and the Outlet on my exhaust. Will my car run f****ed up? and, could it be simply tuned out on a factory chip if, I took it to dynojet or something?
Oh and if you don't plug the intake opening for the EGR that is unmeasured air going into the system. Again that is a lean condition and car goes BOOM.
10-11-2006, 01:14 AM
#16
6th Gear Member
Join Date: May 2006
Location: Ohio
Posts: 6,448
RE: Running with EGR unhooked
ORIGINAL: AmericanRicer87
So my heck engine light came on because the car was running too lean? so if i ran 93 octane in it do you think that would get it back to running stoich?
So my heck engine light came on because the car was running too lean? so if i ran 93 octane in it do you think that would get it back to running stoich?
ORIGINAL: oxfordgt
OK let me give you a quick description on how an EGR works. The egr puts exhaust gases into the intake to put it back into the combustion chamber. The gasses are non flamable and just take up space in the cyl. When it takes up that space it is less air and fuel that can get in there which keeps the cyl temp down. Now with out that dead air in the cyl and the computer not tuned for the it the cyl will still get the same amount of fuel but more air. Do you know what that means? You guessed it lean condition. Do you know what happens in a lean condition? Yup engine goes BOOM. So to answer your question you have to tune it for the EGR delete or hook it back up.
Oh and if you don't plug the intake opening for the EGR that is unmeasured air going into the system. Again that is a lean condition and car goes BOOM.
ORIGINAL: ajmodelski
SO if I plug both the inlet of my EGR and the Outlet on my exhaust. Will my car run f****ed up? and, could it be simply tuned out on a factory chip if, I took it to dynojet or something?
SO if I plug both the inlet of my EGR and the Outlet on my exhaust. Will my car run f****ed up? and, could it be simply tuned out on a factory chip if, I took it to dynojet or something?
Oh and if you don't plug the intake opening for the EGR that is unmeasured air going into the system. Again that is a lean condition and car goes BOOM.
You will have to get a tunner or a tune to make it richer. I suggest you do it very soon or you WILL lose your engine.
10-11-2006, 01:15 AM
#17
I ♥ Acer
Join Date: Mar 2006
Location: Colorado- 8500 feet!
Posts: 5,928
RE: Running with EGR unhooked
No because your car has an octane sensor and it will adjust it to right back where you were. You computer doesn know about that extra air you have. No matter what octane gas you put in.
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