????removing Egr And Air Any Pointers Or Words Of Caution???
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Joined: Jan 2004
Posts: 41
????removing Egr And Air Any Pointers Or Words Of Caution???
Im removing my egr and air and just needed to know if there was anything else to it than just blocking off the egr with the block off plates and removing the air system and blocking off the air tubes. Thanks for all your help once again!!!!! 
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Joined: Dec 1969
Posts: 27,728
From: Little Rock, AR
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
Originally Posted by pHEnomIC
I think since yours is a 97, w/ odb2, it will throw codes, i could be wrong though.
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Joined: Sep 2004
Posts: 162
From: Kansas City, MO
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
I've got a 97 and after I took mine off, it took about 3 days to throw a code. No negative performance issues though. Just make sure to cap the vacuume line on the driver's side rear of the intake that went to the EGR.
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Joined: Dec 1969
Posts: 27,728
From: Little Rock, AR
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
Originally Posted by dover179
... No negative performance issues though. ...
Removal of either of these does not enhance performance. Lack of EGR can cause a performance degradation (from knock retard) if you get detonation from excessive combustion temperatures.
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Joined: Jan 2003
Posts: 472
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
Good point, Shoebox. I buggered up the EGR pipe on my header install and it was easier/quicker/cheaper to block it off than to wait to get a new EGR pipe. The air pump was also disconnected at this time (at headers) and in the way while doing plug wires (well, sorta 
), so I just yanked it and figured if I had probs/codes, I'd just put it back.
), so I just yanked it and figured if I had probs/codes, I'd just put it back.
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Joined: Sep 2004
Posts: 867
From: Felton, Delaware
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
Originally Posted by shoebox
No positive ones either. Removal of either of these does not enhance performance. Lack of EGR can cause a performance degradation (from knock retard) if you get detonation from excessive combustion temperatures.
Removal of either of these does not enhance performance. Lack of EGR can cause a performance degradation (from knock retard) if you get detonation from excessive combustion temperatures.
I always thought it added the hot gasses to the intake which would make the temperatures hotter.
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Joined: Oct 2004
Posts: 37
From: Cleveland
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
thats kinda the way I looked at it too but no. What happens is the spent exhaust gasses take up room in the combustion chamber. Space that would otherwise be taken up by air/fuel. since the exhaust gasses wont burn, less heat is pruduced.
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Joined: Oct 2004
Posts: 37
From: Cleveland
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
egr only opens in certain cruise conditions. not idle or wot. If you open the valve all the way by hand while at idle, car dies. open it a little runs ****ty.
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Joined: Oct 2004
Posts: 37
From: Cleveland
Re: ????removing Egr And Air Any Pointers Or Words Of Caution???
Sometimes (vortech 4.3s in particular) a piece of carbon gets loose and gets wedged in the egr valve. causing it to stick open and run bad.
