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

Air injection reaction pump disconnnected

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Old Sep 4, 2006 | 09:39 PM
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Default Air injection reaction pump disconnnected

While browsing my engine compartment, I discovered that the air injection reaction pump had been disconnnected, and a 25 amp fuse was cramed into one end of the connection. I am bothered by this, because I am the original owner of this car, and this must have been done by one of my mechanics.

I have reconnected the device, but I am not sure what it does. Can anyone clue me in? Maybe my mechanic was doing me a favor and I should put it back the way it was?
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Old Sep 4, 2006 | 11:50 PM
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the AIR comes on and pumps air into the exhaust at startup to help light up the cats sooner. It's an emissions trick...

That is all it does.
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Old Sep 5, 2006 | 03:12 PM
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I will just go on to say that the pump should time out. I think it should run no longer than 240 seconds if I remember right. Make sure it shuts down, maybe this is the problem...or not.

Last edited by pcolt94; Sep 6, 2006 at 07:01 AM.
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Old Sep 5, 2006 | 03:22 PM
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If I disconnect mine, the check engine light comes on and sets a code.
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Old Sep 6, 2006 | 09:57 AM
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Mine has been disconnected for a couple years, actually completely removed (got a pulley elim kit)... never had any issues with it off, never had any check lights on either from it.
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Old Sep 6, 2006 | 09:58 AM
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Originally Posted by GIJoe
Mine has been disconnected for a couple years, actually completely removed (got a pulley elim kit)... never had any issues with it off, never had any check lights on either from it.


yeah, but yours isnt electric like the LT1
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