2023 C8 Corvette Stingray Check Engine Light On

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Mar 2, 2024 | 02:35 PM

Zephyr602

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From: Connecticut

2023 C8 Corvette Stingray Check Engine Light On

Hey guys! I've got a 2023 C8 Corvette Stingray. Just two days ago, I noticed the check engine light popped on. I swapped in an AWE track edition exhaust system around six months back, and everything's been smooth sailing until now. Despite the engine light being on, the car's still running fine. Any thoughts or advice on what might be going on?

Mar 2, 2024 | 03:11 PM

Semifighter18

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First step is to get a code reader and figure out what the code is. Then go from there. Can't really say much more until you see what the code is.

Mar 2, 2024 | 03:13 PM

Zephyr602

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From: Connecticut

Quote:

Originally Posted by Semifighter18

First step is to get a code reader and figure out what the code is. Then go from there. Can't really say much more until you see what the code is.

The code is P31D1 and P31CF. Seems like it is due to the mixture of the oil and the air.

Mar 2, 2024 | 08:42 PM

blkgenius

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From: NoVA

You had a factory NPP exhaust. When installing the AWE exhaust, you also installed NPP valve simulators. One, or both, of the valve simulators have failed, triggering the CEL.

Mar 2, 2024 | 09:33 PM

Zephyr602

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From: Connecticut

Quote:

Originally Posted by blkgenius

You had a factory NPP exhaust. When installing the AWE exhaust, you also installed NPP valve simulators. One, or both, of the valve simulators have failed, triggering the CEL.

Thanks a lot for the information! So may I know how to fix the problem? Buy the new simulators and install them on? Does the installation need to remove the rear bumper? Really appreciate!

Mar 5, 2024 | 09:57 AM

Sara/AWE

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Joined: Jan 2020

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Hey OP! If you have not been in contact with our customer support yet, fill out this form to get in touch with them ASAP right here.

They can help you troubleshoot and determine if the code is being caused by our sims and correct the issue