A.I.R. Pump by-pass
Thread Starter
Racer
Joined: Jul 2006
Posts: 319
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A.I.R. Pump by-pass
I've developed some noise in my AIR pump. There's a tech tip for bypassing the pump by just removing it, taking off the back cover, breaking off the two plastic tabs, greasing up exposed bearings and re-installing. Sounds simple enough.
But, I'm curious if doing that can affect how the engine runs, idles, etc? Will the car have a richer exhaust if I bypass the AIR pump? Any other affects I should be aware of?
But, I'm curious if doing that can affect how the engine runs, idles, etc? Will the car have a richer exhaust if I bypass the AIR pump? Any other affects I should be aware of?
Last edited by davemack; Oct 8, 2006 at 03:21 PM.
Safety Car
Joined: Dec 2004
Posts: 4,088
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From: Poop land
I know the AIR pump is supposed to warm up the cats faster when you first just start your car. Dunno if you have emissions or not, but since it is in the way of everything, I'd just buy an AIR pump elim kit somewhere.
Removing it should not really effect anything at all. If you have cats, then I say remove, regrease, reinstall, and reuse. If you have no cats, then get an elim kit.
Removing it should not really effect anything at all. If you have cats, then I say remove, regrease, reinstall, and reuse. If you have no cats, then get an elim kit.
Thread Starter
Racer
Joined: Jul 2006
Posts: 319
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Originally Posted by kopbet89c4
I know the AIR pump is supposed to warm up the cats faster when you first just start your car. Dunno if you have emissions or not, but since it is in the way of everything, I'd just buy an AIR pump elim kit somewhere.
Removing it should not really effect anything at all. If you have cats, then I say remove, regrease, reinstall, and reuse. If you have no cats, then get an elim kit.
Removing it should not really effect anything at all. If you have cats, then I say remove, regrease, reinstall, and reuse. If you have no cats, then get an elim kit.
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Originally Posted by GIJoe
Remove it! one of the nicest things I did for my engine bay.
Safety Car
Joined: Dec 2004
Posts: 4,088
Likes: 0
From: Poop land
Originally Posted by Muffin
I didn't beat mine to death but putting it in the attic was one of the smart things I have done. I don't think I recall anyone saying they had engine/performance issues with removal.
Racer
Joined: Oct 2004
Posts: 435
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From: Seattle WA
Just make sure that if you pull all of the AIR stuff out you hook up your fuel pressure regulator. Use a little piece of tube to connect the vacuum port on your intake to the fuel pressure regulator. If not the regulator will be putting out max fuel pressure all the time.
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Melting Slicks
Joined: Feb 2006
Posts: 2,753
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From: backwoods upstate ny
Originally Posted by kopbet89c4
One of the reasons I had to beat mine out because there was a bolt seize on a bracket and it broke that as well. Then it was down... That sucker HAD to go!!!!
your ecm and engine will have no idea that the air p is gone, except for prolly running cooler due to enhanced air flow thru the engine compartment.
if you're not off-road, you need a electric air pump from a 94-96 lt1 caprice/camaro or later year chev blazer for emissions
...the ecm signals to the orig belt driven pump's ''air control valve'' are fed to a relay to turn the elec pump on/off as needed (the belt drive pump is afull time drag and ''vents overboard'' when not needed)...the elec pump may be mounted underhood or elsewhere (there is a huge void above the right muffler) and a hose (3/4'' vinyl garden hose is satisfactory) run forward to the diverting valve (do not subject vinyl hose to elevated temp)...intake air to the elec pump should have a filter...the elec pump weighs abt 3 lb vs 9 lb for the belt driven pump/bracket
Burning Brakes
Joined: Jun 2005
Posts: 802
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From: What do I know anyway? I'm just a 50 year old No0b
Originally Posted by 90Z51
Just make sure that if you pull all of the AIR stuff out you hook up your fuel pressure regulator. Use a little piece of tube to connect the vacuum port on your intake to the fuel pressure regulator. If not the regulator will be putting out max fuel pressure all the time.
