LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

how to delete air and egr systems totally?

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Old Jul 3, 2003 | 10:01 PM
  #1  
chevyboy_z28's Avatar
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From: Detroit, MI
how to delete air and egr systems totally?

sorry guys i know that this has been posted on thousands of times (i think i even posted on similar topics a couple of times) but when i did a search all i could find was how to replace the egr valve and the search brought up every dam post that ever had air in it, so it would take me weeks just to find a decent post on what im lookin for. anyway im wanna get rid of both these systems completely, allday everyday my SES light occasionally goes on and turns off, b/c of that dam stickin egr valve so ive come to the conclusion that me and that POS need to part our ways. as for the air pump, i just see it as unsprung/dead weight, it aint helpin my car perform better so it needs to go. can someone tell me how to delete these systems completely, EVERYTHING i will need to delete both the systems, and lastly where to get the parts (block off plates, etc)?...diagrams and before and after pics would be nice if available! thanx in advance

Last edited by chevyboy_z28; Jul 3, 2003 at 10:04 PM.
Old Jul 4, 2003 | 08:27 AM
  #2  
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From: Little Rock, Arkansas
You will need to remove the EGR valve and install block off plates for the valve and the EGR passenger exhaust manifold to intake manifold pipe (also on the back of the intake manifold.)

These guys can send you the block off plates or you can make your own.
http://www.mycamaroz28.homestead.com/

Remove the AIR pump and all associated lines. Install plugs (I used oil drain plugs from NAPA) in the exhaust manifolds where the AIR pump lines went. Install a vacuum cap where the AIR pump inlet line drew air from your intake piping. Remove all associated AIR and EGR vacuum control lines and use vacuum caps to block fittings on the intake manifold. Assorted packages of vacuum caps can be attained at almost any auto parts store. There is a hard line for the AIR system that runs from the driver’s side to the passenger side. This hard line can be difficult to remove. If you chouse to remove it, cut it in half at the bottom front of the engine. As it is a little bit of a pain, you can instead just leave it. I'm not sure what your 95 will need in the way of programming to avoid codes.

Hope this helps,

JeffA
Old Jul 4, 2003 | 09:21 AM
  #3  
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From: Phoenix, AZ
I have blocked my EGR (but still on the car) and have removed the AIR system completely.

There is a code 32 for the EGR that can be programmed out as well as a code 29 for the AIR. I disabled the 32, but never the 29 because in 95's the AIR pump does not give feedback regarding whether it is working or not unlike OBD II.

You should have no issues with your SES if you can program the code 32 out.

Ben
Old Jul 4, 2003 | 10:57 AM
  #4  
TMDZ28's Avatar
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From: LA, So Cal
any gains from !egr
Old Jul 4, 2003 | 11:36 AM
  #5  
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From: Lexington, KY
95 black hawk- man i have the same problem my egr valve gets stuck also and my ses light will come on one day, be off the next time i start it and wont come on for a day, 2 days, sometimes a week and it comes on again. it sucks. my question for you is since you have programmed the 32 out which is the egr, how do you do that? and if you do program it out will you have to take out your egr or put the block off plates on it. i really dont need my egr and it hasnt made my car perform worse i dont think but i need to know how to program that code 32 out so it wont fire my ses it is a pita when it comes on cuz i hate it thanks man!
Old Jul 4, 2003 | 12:00 PM
  #6  
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From: Phoenix, AZ
Originally posted by EaC95Z28
95 black hawk- man i have the same problem my egr valve gets stuck also and my ses light will come on one day, be off the next time i start it and wont come on for a day, 2 days, sometimes a week and it comes on again. it sucks. my question for you is since you have programmed the 32 out which is the egr, how do you do that? and if you do program it out will you have to take out your egr or put the block off plates on it. i really dont need my egr and it hasnt made my car perform worse i dont think but i need to know how to program that code 32 out so it wont fire my ses it is a pita when it comes on cuz i hate it thanks man!
Well, I have TunerCat. This program allows me to alter what is going on in the engine. If you have any interest in changing your PCM, this is the way to go. Others use LT1 Edit and I am sure it is a quality program also. You can see from my sig, I was able to tune my car the way I wanted it. This can only be done by working on the PCM until you get it the way YOU want it.

I highly recc. tunercat.com and I use Datamaster to look at my PCM while running. Also, Datamaster may give you insight into why your EGR is giving you your SES.

GL

Ben
Old Jul 4, 2003 | 12:07 PM
  #7  
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From: Madison Heights, MI
Originally posted by av8er
There is a hard line for the AIR system that runs from the driver’s side to the passenger side. This hard line can be difficult to remove. If you chouse to remove it, cut it in half at the bottom front of the engine. As it is a little bit of a pain, you can instead just leave it.
I hada hard time and just left it. Eventually it will come out. Looks like there is a little bracket spot welded to it near the #1 primary. I dont know what to do with that right now either.

http://www.mycamaroz28.homestead.com/

I highly recommend their plates. I have them and they fit perfectly and of course work perfectly. You can always make your own but I went this way because it was less hassle for me.
Old Jul 4, 2003 | 10:21 PM
  #8  
chevyboy_z28's Avatar
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From: Detroit, MI
ok which block off plate kit am i supposed to order off this site http://www.sjmmanufacturing.homestea...rder_Form.htm.
Old Jul 4, 2003 | 10:30 PM
  #9  
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From: Madison Heights, MI
Originally posted by chevyboy_z28
ok which block off plate kit am i supposed to order off this site http://www.sjmmanufacturing.homestea...rder_Form.htm.
The three plate kit is for exhaust manifold and both intake manifold ports the EGR is connected to. The 2 plate is if you have nothing to block off on the exhaust manifold which means headers with no EGR provision.
Old Jul 4, 2003 | 10:37 PM
  #10  
chevyboy_z28's Avatar
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From: Detroit, MI
thanx
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