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

what is !CAGS,!AIR,!EGR

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Old Feb 27, 2003 | 06:45 PM
  #1  
darkoverlift's Avatar
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what is !CAGS,!AIR,!EGR

why does everyone remove them. is there a site on how to do this.
Old Feb 27, 2003 | 07:06 PM
  #2  
1994TransAm's Avatar
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From: port huron, michigan
CAGS is for M6's only...make you shift from 1st to 4th to save gas

AIR! is air injection recirculation, this pumps are into the exhaust to heat the cats up by mix air with extra fuel during start up.

EGR! is exhaust gas recirculation, this pumps exhuast gas back into your motor for emmissions.

all of this is a waste and you should get rid of it, unless the state says you need it!!!

sorry i ment 4th!!!!

Last edited by 1994TransAm; Feb 27, 2003 at 09:07 PM.
Old Feb 27, 2003 | 07:28 PM
  #3  
surfinmud's Avatar
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From: sd, ca
I'm not exactly sure what it means, but here's my guess:

the "!" is used in programming languages like java to mean "not."

So i'm thinking they are using it to mean "no" Basically they've taken their AIR, EGR, CAGS or whatever out.

People remove them becuase they are annoying. (Especially CAGS) AIR and EGR are emissions components so don't remove them unless you don't have emissions tests.

Last edited by surfinmud; Feb 27, 2003 at 07:31 PM.
Old Feb 27, 2003 | 07:32 PM
  #4  
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From: newton, kansas, USA
The cags people do because it is annoying. The AIR and EGR people usually do because it cleans up the engine bay tremendously. Also a lot of the time people take them off because the air pump goes bad or the egr valve goes out and cause's problems or codes. That is why i took my air pump off is because it went out and i didn't want to pay to replace it. The egr was welded up on my headers so i just deleted it too.
Old Feb 27, 2003 | 07:41 PM
  #5  
Xride's Avatar
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From: Edmonton, Alberta, Canada
Originally posted by 1994TransAm
CAGS is for M6's only...make you shift from 1st to 3rd to save gas
1st to 4th.
and is the ****tiest thing ever made.
Old Feb 27, 2003 | 07:46 PM
  #6  
95z28 -quicksilver's Avatar
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From: Austin, TX or Texas State University at San Marcos
If u get gears like 4.10's for example like i did then skipshift is not bad at all. And it goes from 1st gear to 4th, not 3rd like somebody else said. People usually remove their air pump and EGR if they go bad or when they do a header install.


Chris
Old Feb 28, 2003 | 09:31 AM
  #7  
darkoverlift's Avatar
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any sites on how to do this? what about on a 97, what can you do?
Old Feb 28, 2003 | 09:34 AM
  #8  
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if you are asking how to do the CAGS (computer aided gear selection) than all you need to do is buy a $30 skip shift eliminator.

i think there is a way to do it with resistors but that may throw a code.
Old Feb 28, 2003 | 10:00 AM
  #9  
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From: Little Rock, AR
Besides the small amount of weight, there are no performance benefits from removing the AIR pump or EGR. Some of the AIR stuff does clutter the engine compartment, but the EGR is all the way in back of the intake manifold. The only thing it might be in the way of is the oil pressure sensor.
On an OBD2 car (1996 and up) removing the EGR will likely throw a trouble code unless you have it programmed out or take other measures to fake out the computer.
Unless you are doing headers and can get by without emissions stuff, removing all this (if it is functioning) is pretty much a waste of time, IMO.
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