C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

a.i.r. pump&components

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Old Dec 21, 2009 | 11:16 AM
  #1  
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Default a.i.r. pump&components

have a 1987 corvette with bad air solenoids and swithes (broken plastic) can this system be elliminated with out damaging converters? also will this effect computor function?
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Old Dec 21, 2009 | 11:40 AM
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I say no. the unburnt fuel needs to burn or it will damage the converters.
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Old Dec 24, 2009 | 07:49 PM
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Removal of the AIR pump and associated piping will not cause any problems. Be sure to cap off all vacuum lines. An AIR pump eliminator pulley kit is kinda pricey at $150 but the engine bay looks alot cleaner. Lots of folks have done it including myself.
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Old Dec 24, 2009 | 08:45 PM
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Originally Posted by jeffp1167
I say no. the unburnt fuel needs to burn or it will damage the converters.
The air is only injected at certain times; the rest of the time the cat works without it.

Originally Posted by HlhnEast
Removal of the AIR pump and associated piping will not cause any problems. Be sure to cap off all vacuum lines..

You can leave the one way valves on the exh manifolds and just cap them with a 5/8" rubber cap and hose clamp.Or you can remove them completely and use a metal cap on the threaded pipe.Everything else can come off
Be sure to tape up the connectors on the wires that were plugged into the divertor valves.These are live ; key on
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Old Dec 26, 2009 | 02:03 PM
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[/QUOTE]You can leave the one way valves on the exh manifolds and just cap them with a 5/8" rubber cap and hose clamp.Or you can remove them completely and use a metal cap on the threaded pipe.Everything else can come off
Be sure to tape up the connectors on the wires that were plugged into the divertor valves.These are live ; key on[/QUOTE]

Yeah forgot about the manifolds, mine were already done with a 1/2" metal plug by the PO. I did tape up the connectors too. Good catch Rod!
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Old Jan 6, 2010 | 07:35 PM
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What about the pipe that goes down under the engine from the passenger side? What is it for and could it be removed instead of plugged?

I left the metal lines on the manifolds and put in the plug like you said.
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Old Jan 7, 2010 | 09:39 AM
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Originally Posted by HlhnEast
Removal of the AIR pump and associated piping will not cause any problems. Be sure to cap off all vacuum lines. An AIR pump eliminator pulley kit is kinda pricey at $150 but the engine bay looks alot cleaner. Lots of folks have done it including myself.
Who makes the pulley kit that you have and where did you get it.
I'm considering de-veining my existing pulley and just removing all the additional plumbing but if it doesn't work I may have to go with the kit.

Thanks,
Jeffrey
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Old Jan 7, 2010 | 05:49 PM
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I got mine from TPiS directly but I think several retailers offer it too. They said that the original belt could be reused but I ended up getting one an inch shorter. I also ground off a little of the alternator casing for the bolts to go into the block. TPiS is highly respected and makes many great products for our generation. I dont know what the difference was on my car.

If you do a search for AIR elimination brackets I think you will find quite a few who have either gutted the pump or made their own brackets. I went with the premade one because I dont have the equipment to make one myself.
Good Luck!
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Old Jan 7, 2010 | 07:33 PM
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Originally Posted by rsovine
What about the pipe that goes down under the engine from the passenger side? What is it for and could it be removed instead of plugged?

I left the metal lines on the manifolds and put in the plug like you said.
That tube goes to the main catalytic converter. If you have remove the lines to the exhaust manifolds, you can disconnect the tube and cap it too.

Removal of the entire AIR system will not cause any ECM codes.

Do you live in an area where emissions testing is required? If the car has to undergo a sniffer test or a visual inspection, the car may fail.
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Old Jan 9, 2010 | 10:32 PM
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Default That setup works fine on my 89

Originally Posted by HlhnEast
Removal of the AIR pump and associated piping will not cause any problems. Be sure to cap off all vacuum lines. An AIR pump eliminator pulley kit is kinda pricey at $150 but the engine bay looks alot cleaner. Lots of folks have done it including myself.
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