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Deleting Secondary AIR system

Old Mar 3, 2026 | 09:01 PM
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Default Deleting Secondary AIR system

I’ve pulled off the entire secondary air injection system on my 99 Corvette. As it sits I know I can expect to set a cel. I’m asking if I need to pull any fuses or relays to kill the power going to the harness connection for the pump itself. I’ll have to find someone to tune out the system from the pcm. I had ordered some block off plates for the exhaust manifolds but they didn’t fit so I made my own. Anything else I’m missing? TIA.
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Old Apr 7, 2026 | 04:40 PM
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Originally Posted by f6john
I’ve pulled off the entire secondary air injection system on my 99 Corvette. As it sits I know I can expect to set a cel. I’m asking if I need to pull any fuses or relays to kill the power going to the harness connection for the pump itself. I’ll have to find someone to tune out the system from the pcm. I had ordered some block off plates for the exhaust manifolds but they didn’t fit so I made my own. Anything else I’m missing? TIA.
There is a fuse for it, best as you mentioned to change AIR settings for pump and codes to not allow PCM to run it, and not set any codes for it - as if it never was on the car.
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Old Apr 10, 2026 | 08:41 PM
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Yup when I pulled all that off my 2002 Z06 I turned it all off in the Tune with my HP Tuners.

It's Fuse #51, fourth one down on the side with the big MAXI Fuses.
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