Engine Light Code P12EA
Thread Starter
Enjoy while you can.
Joined: May 2008
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From: 10th District Court OHIO
Ohio Events Coordinator
2025 Corvette of the Year Winner - Unmodified
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St. Jude Donor '14 thru '26
Engine Light Code P12EA
Cylinder Deactivation Exhaust Control Valve, Position Signal Exceeds Upper Limit.
They cant get to it for 7 weeks and said it was ok to drive it but dont track it
Sound right to you guys?
They cant get to it for 7 weeks and said it was ok to drive it but dont track it
Sound right to you guys?
Melting Slicks
Joined: Apr 2021
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From: Simi Valley, CA
2022 C8 of the Year Finalist - Modified
The "can't get to it for 7 weeks" part sure doesn't sound right. Driving it is probably OK as long as AFM valve is not stuck closed (not sure what that position error actually means).
Thread Starter
Enjoy while you can.
Joined: May 2008
Posts: 18,207
Likes: 3,346
From: 10th District Court OHIO
Ohio Events Coordinator
2025 Corvette of the Year Winner - Unmodified
2024 C2 of the Year Winner - Unmodified
2023 C8 of the Year Finalist - Unmodified
2022 C2 of the Year Finalist - Unmodified
2019 C2 of Year Finalist (stock)
St. Jude Donor '14 thru '26
Their main mechanic is off for several weeks. I called another dealer close by, I am in this Monday. They too, said it was safe to drive.
Thread Starter
Enjoy while you can.
Joined: May 2008
Posts: 18,207
Likes: 3,346
From: 10th District Court OHIO
Ohio Events Coordinator
2025 Corvette of the Year Winner - Unmodified
2024 C2 of the Year Winner - Unmodified
2023 C8 of the Year Finalist - Unmodified
2022 C2 of the Year Finalist - Unmodified
2019 C2 of Year Finalist (stock)
St. Jude Donor '14 thru '26
They were able to get the exhaust value working again, so they decided not to order a new one.
Thread Starter
Enjoy while you can.
Joined: May 2008
Posts: 18,207
Likes: 3,346
From: 10th District Court OHIO
Ohio Events Coordinator
2025 Corvette of the Year Winner - Unmodified
2024 C2 of the Year Winner - Unmodified
2023 C8 of the Year Finalist - Unmodified
2022 C2 of the Year Finalist - Unmodified
2019 C2 of Year Finalist (stock)
St. Jude Donor '14 thru '26
Examination found the left exhaust flow control valve cylinder deactivation was out of specifications. They performed the left exhaust flow control valve reset which did the trick.
