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C8 Fabspeed Cats P0420

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Old Mar 11, 2024 | 10:13 PM
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Default C8 Fabspeed Cats P0420

Hello!

After almost 6.5k miles on my Vette, I just got the p0420 CEL because of my Fabspeed high flow cats. I really don’t want to tune my vehicle as many shops have suggested. Are there any other solutions? Currently there is nothing wrong with the car other than the CEL light.

I have a 2020 Corvette with Fabspeed Cats and Exhaust. I bought it used at 2k miles with the cats and exhaust already installed. Thank you!
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Old Mar 11, 2024 | 10:19 PM
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I run catless pipes, with no guarantee that the $200 mini cats would solve this I just let the light come on and use the app Torque to auto clear through a Bluetooth obd2 adapter
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Old Mar 12, 2024 | 01:45 AM
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Originally Posted by SinisterC6
I run catless pipes, with no guarantee that the $200 mini cats would solve this I just let the light come on and use the app Torque to auto clear through a Bluetooth obd2 adapter
It's always awful to follow a car with no cats in traffic. Since you lose minimal to no power anyway, I'd highly recommend at least using high flow cats : )
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Old Mar 12, 2024 | 08:33 AM
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Originally Posted by JEstrada5
Hello!

After almost 6.5k miles on my Vette, I just got the p0420 CEL because of my Fabspeed high flow cats. I really don’t want to tune my vehicle as many shops have suggested. Are there any other solutions? Currently there is nothing wrong with the car other than the CEL light.

I have a 2020 Corvette with Fabspeed Cats and Exhaust. I bought it used at 2k miles with the cats and exhaust already installed. Thank you!
Quick & simple install: http://www.bigdaddiesgarage.com/straight-cel-fix.html
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