New headers make car run rough and check engine light
Thread Starter
Intermediate
Joined: Feb 2024
Posts: 45
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From: North canton, oh
New headers make car run rough and check engine light
Well the title says it all. Had headers installed on my 2023 c8. No other exhaust mods. Drove the car home and it was running rough and the esc light came on and then today I had the check engine light come on. Blinking at first and then solid. Do I need a tune for headers??
Race Director
Joined: Jan 2014
Posts: 10,709
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From: Fulshear, TX
You likely have a spark plug wire that came loose. It can take effort to get them to click onto the spark plug.
Look down in there with a flashlight and I bet you find 1 of the 8 dangling. Shouldn't be hard to see, then reach down and reattach it once the engine cools.
Look down in there with a flashlight and I bet you find 1 of the 8 dangling. Shouldn't be hard to see, then reach down and reattach it once the engine cools.
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Well the title says it all. Had headers installed on my 2023 c8. No other exhaust mods. Drove the car home and it was running rough and the esc light came on and then today I had the check engine light come on. Blinking at first and then solid. Do I need a tune for headers??
Drifting
Joined: Dec 2016
Posts: 1,704
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Thread Starter
Intermediate
Joined: Feb 2024
Posts: 45
Likes: 12
From: North canton, oh
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Race Director
Joined: Jan 2014
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From: Fulshear, TX
Drifting
Joined: Dec 2016
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I installed my headers, alone and my first time on the C8 (hobby guy), and never had a single issue. I ensured all plug wires were reconnected properly after installing the headers and that the wires were not touching them. Don’t know much about the installer but this job is not difficult. Definitely curious to know what happened here. Keep us posted
Last edited by 01Defense; Apr 21, 2024 at 11:44 AM.
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We regret to learn you are experiecing concerns with your Corvette. Our team would the opportunity to assist on this matter further with you. Please send us an email to socialmedia@gm.com. Be sure to include your Username and Forum name in the subject line, and additional details about your concerns in the body of the email. We look forward to your contact.
Race Director
Joined: Jan 2014
Posts: 10,709
Likes: 7,102
From: Fulshear, TX
Drifting
Joined: Dec 2016
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Thread Starter
Intermediate
Joined: Feb 2024
Posts: 45
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From: North canton, oh
Le Mans Master
Joined: Jun 2005
Posts: 5,037
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From: Texas
I always wondered about things like this. Look at air intakes. Eventuri makes the most power. But for $2k less, I can get an afe intake made with plastic that makes less power but more than stock.
I'm seriously wondering if someone like Paragon would be interested in adding this to a header shoot out.
I'm seriously wondering if someone like Paragon would be interested in adding this to a header shoot out.