AIR removal questions.
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Joined: Jul 2012
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AIR removal questions.
I'm sorry if this has been beat to death but I can't seem to find a straight forward answer. On a 2000 C5 if I go to a race header (no emissions) and I remove the AIR will it throw a SES light? I've always worked on Fbodys and you can take those off without problems.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
Yes,, it will set a CEL. The PCM does a AIR system check during part throttle cruise and if the PCM doesnt see the O2 sensor voltage change when the AIR pump is running it will set a P-1415, P-1416,
If you remove the entire pump and pluming you will also see P-0410, P-0412, P-0418 and P-1415, P-1416,
You can have all that tuned out with tuning software like EFI Live or HP Tuners
The codes and removal of the AIR system will NOT effect performance or economey. Removal of the system will NOT give you any benifit other than a weight loss and clean up the engine compartment. Make sure that you have the header AIR block off plates if your headers have the AIR flanges
If you remove the entire pump and pluming you will also see P-0410, P-0412, P-0418 and P-1415, P-1416,
You can have all that tuned out with tuning software like EFI Live or HP Tuners
The codes and removal of the AIR system will NOT effect performance or economey. Removal of the system will NOT give you any benifit other than a weight loss and clean up the engine compartment. Make sure that you have the header AIR block off plates if your headers have the AIR flanges
Burning Brakes
Joined: Oct 2004
Posts: 986
Likes: 23
From: Florence SC
Yes,, it will set a CEL. The PCM does a AIR system check during part throttle cruise and if the PCM doesnt see the O2 sensor voltage change when the AIR pump is running it will set a P-1415, P-1416,
If you remove the entire pump and pluming you will also see P-0410, P-0412, P-0418 and P-1415, P-1416,
You can have all that tuned out with tuning software like EFI Live or HP Tuners
The codes and removal of the AIR system will NOT effect performance or economey. Removal of the system will NOT give you any benifit other than a weight loss and clean up the engine compartment. Make sure that you have the header AIR block off plates if your headers have the AIR flanges
If you remove the entire pump and pluming you will also see P-0410, P-0412, P-0418 and P-1415, P-1416,
You can have all that tuned out with tuning software like EFI Live or HP Tuners
The codes and removal of the AIR system will NOT effect performance or economey. Removal of the system will NOT give you any benifit other than a weight loss and clean up the engine compartment. Make sure that you have the header AIR block off plates if your headers have the AIR flanges
Hey Bill, Did you remove this stuff from your car? I'd like to get it off mine.
Race Director
Joined: Dec 2004
Posts: 13,760
Likes: 75
From: Haymarket VA
My car didn't come with any of that stuff 
but if it had and it was removed it would definitely throw codes and trigger a CEL. As Bill said, using EFI Live (which I would have used) or other tuning software you can set the code to not reported.
BTW: Most header manufacturers recommend NOT useing block off plates in the air tubes. For some reason, it raises the frequency of which they will break off. The best way to do it is cut them off and weld on a small plate to block the hole. That's what I did.
but if it had and it was removed it would definitely throw codes and trigger a CEL. As Bill said, using EFI Live (which I would have used) or other tuning software you can set the code to not reported. BTW: Most header manufacturers recommend NOT useing block off plates in the air tubes. For some reason, it raises the frequency of which they will break off. The best way to do it is cut them off and weld on a small plate to block the hole. That's what I did.
Last edited by WKMCD; Sep 11, 2012 at 10:23 AM.
Tech Contributor
Joined: Dec 1999
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From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
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Melting Slicks
Joined: Jun 2012
Posts: 3,163
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From: Oceanside California
My car didn't come with any of that stuff but if it had and it was removed it would definitely throw codes and trigger a CEL. As Bill said, using EFI Live (which I would have used) or other tuning software you can set the code to not reported.
BTW: Most header manufacturers recommend NOT useing block off plates in the air tubes. For some reason, it raises the frequency of which they will break off. The best way to do it is cut them off and weld on a small plate to block the hole. That's what I did.
but if it had and it was removed it would definitely throw codes and trigger a CEL. As Bill said, using EFI Live (which I would have used) or other tuning software you can set the code to not reported. BTW: Most header manufacturers recommend NOT useing block off plates in the air tubes. For some reason, it raises the frequency of which they will break off. The best way to do it is cut them off and weld on a small plate to block the hole. That's what I did.
Melting Slicks
Joined: Jun 2010
Posts: 2,809
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From: Yorktown Virginia
