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Old Apr 25, 2021 | 09:33 PM
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Default Engine warning light
Engine warning light on...App says Emissions exhaust? Has anyone taken their car in for service for this on a 2020 C-8 ? Appreciate your thoughts. Thank you
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Old Apr 25, 2021 | 10:25 PM
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Might just need to be recalibrated.

Do you have a after market exhaust?
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Old Apr 25, 2021 | 10:35 PM
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Originally Posted by SPOHN
Might just need to be recalibrated.

Do you have a after market exhaust?
No I don’t... I hope you are correct ! Thank you
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Old Apr 25, 2021 | 11:32 PM
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or exhaust valve

either way take her in asap.
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Old Apr 27, 2021 | 11:17 AM
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Originally Posted by SPOHN
Might just need to be recalibrated.

Do you have a after market exhaust?
Looks like they need to take off the rear bumper to look at it.....
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Old Apr 27, 2021 | 01:08 PM
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Originally Posted by Vette2020
Looks like they need to take off the rear bumper to look at it.....
Let us know what they find. Thanks.
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Old Apr 27, 2021 | 02:14 PM
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I had the check engine light on at delivery. They reset the light and it not come back on right away. I thought about not accepting the car but after a year and a half decided that I'd take my chances. After a few days, the light came back on. For my car, the code indicated a faulty O2 sensor. My dealership replace both the O2 sensor and the ECM. I now have 2,000 trouble free miles on the car.
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Old Apr 27, 2021 | 05:03 PM
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Originally Posted by gearup72
I had the check engine light on at delivery. They reset the light and it not come back on right away. I thought about not accepting the car but after a year and a half decided that I'd take my chances. After a few days, the light came back on. For my car, the code indicated a faulty O2 sensor. My dealership replace both the O2 sensor and the ECM. I now have 2,000 trouble free miles on the car.
Just got the car back. They just did a Download update...engine light not on anymore. The app also says everything is good. While I was there they noticed a detached HVAC drain hose and reattached. Said just to watch for any engine light in the future. They wanted to remove the bumper to check other things but I said no... I’ll keep an eye on on the warning light in future.
* QUESTION-Should I have let them remove bumper? Light went off ? What would you experienced Vette owners have done ??
Thanks!
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Old Apr 27, 2021 | 05:06 PM
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No need to remove bumper. But next time of it happens let them dive deeper. Either way it wouldn’t of cost you anything but time at this point. Glad it got worked out.
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Old Apr 27, 2021 | 05:09 PM
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Originally Posted by Vette2020
Just got the car back. They just did a Download update...engine light not on anymore. The app also says everything is good. While I was there they noticed a detached HVAC drain hose and reattached. Said just to watch for any engine light in the future. They wanted to remove the bumper to check other things but I said no... I’ll keep an eye on on the warning light in future.
* QUESTION-Should I have let them remove bumper? Light went off ? What would you experienced Vette owners have done ??
Thanks!

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Old Apr 30, 2021 | 10:50 PM
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Originally Posted by Vette2020
***The engine light came back on again after a few days. Looks like I have to take it back in. App said same thing... Emissions. Guess the bumper has to come off.
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Old Apr 30, 2021 | 10:53 PM
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Originally Posted by Vette2020
***The engine light came back on again after a few days. Looks like I have to take it back in. App said same thing... Emissions. Guess the bumper has to come off.

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Old May 1, 2021 | 09:38 AM
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Most likely a faulty exhaust valve. It’s common also. Not a big issue.

Any plans to go with after market exhaust? If so add these. Big hit. Completely eliminates those faults. Tell them Christopher send you if you do.
Cicio Exhaust Modules
Last edited by NoMatter; May 1, 2021 at 09:44 AM.
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Old May 1, 2021 | 10:02 AM
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Originally Posted by SPOHN
Most likely a faulty exhaust valve. It’s common also. Not a big issue.

Any plans to go with after market exhaust? If so add these. Big hit. Completely eliminates those faults. Tell them Christopher send you if you do.
Cicio Exhaust Modules
Thanks for the info. I hope the bumper is a easy removal and goes back like it never even happen!
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Old May 1, 2021 | 01:13 PM
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@Vette2020 whatbis the code you are getting? If you don’t have an obd reader press on star and ask them what the code is
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