Air pump
12 Second Club
Joined: Sep 2005
Posts: 4,273
Likes: 0
From: Bucks County, Pa.
Yes, and sometimes even a brand new, perfectly functioning pump will make a god awful squeal/shreik, almost like a REALLY BAD seperntine pulley bearing, which will go away when the engine is revved above idle, and then return when back to idle, until the pump shuts off.
Joined: Nov 2001
Posts: 34,629
Likes: 2,548
From: Schiller Park, ILL Member: #317
To heat the cats more quickly when the engine is first started.
Higher tail pipe emissions when the engine/exhaust are still cold.
No idea. In my state it's not a problem to delete it as long as the tuning is done properly to keep the SES off.
Higher tail pipe emissions when the engine/exhaust are still cold.
No idea. In my state it's not a problem to delete it as long as the tuning is done properly to keep the SES off.
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In ca you will not pass visual inspection. Yes ,they check for the cats, air pump and Egr. I have my egr blocked off and I'm gonna have to put it back on and have it tuned out for my smog in December. 99 and earlier have to do the tailpipe sniffer still. 2000 and newer you have to have all monitors set to ready and no pending or current codes and its plug in the obd and go.99 and earlier can still have one system not ready I think.I would take my air pump off if it wouldn't be such a problem every 2 years.
Last edited by celtsean; Jun 21, 2015 at 03:42 PM.
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Verdad Gallardo In ca you will not pass visual inspection. Yes ,they check for the cats, air pump and Egr. I have my egr blocked off and I'm gonna have to put it back on and have it tuned out for my smog in December. 99 and earlier have to do the tailpipe sniffer still. 2000 and newer you have to have all monitors set to ready and no pending or current codes and its plug in the obd and go.99 and earlier can still have one system not ready I think.I would take my air pump off if it wouldn't be such a problem every 2 years.
12 Second Club
Joined: Sep 2005
Posts: 4,273
Likes: 0
From: Bucks County, Pa.
Does anyone know if the air pump system also functions with (and helps 'save' vs. having it totally deleted/tuned out) the metal matrix, high flow aftermarket catcons used with long tubes (given that the headers have the albeit fragile, A.I.R. system 'stove pipes'), or would it NOT help those to 'light off' (or live longer) at all?? 
