Error Code P0300
Tech Contributor
Joined: Oct 1999
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From: Charlotte, NC (formerly Endicott, NY)
Might not be. However, it might be worth asking whether it might be covered due to the low mileage. It could be a loose spark plug wire. When do you get the code? The dealer's scan tool can read the history file which can show where the misfires are occurring. With my P0300 code I saw the misfire was occurring on cylinder 8 at about 5200 rpm at wide open throttle. When the failure was logged it showed there were 64 misfires on that cylinder. All I felt was some sluggishness in how the car accelerated above 100 mph.
Bill
Bill
Last edited by Bill Dearborn; Oct 13, 2019 at 09:50 PM.
Le Mans Master
Joined: Mar 2016
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From: 2019 CMG Z06/ZR1
Last edited by LT4CMG; Oct 13, 2019 at 09:51 PM.
Le Mans Master
Joined: Mar 2016
Posts: 9,177
Likes: 4,018
From: 2019 CMG Z06/ZR1
Funny, I had the same thought. Trailered it to Corvettes at Carlisle, came home, unloaded, parked for 2 weeks. Reloaded, tailered to a show in Bowling Green, came home. Unloaded, and it started running rough. Figured crappy old gas. But it got worse and some faint knocking started. Took it to the dealer, as my tech was starting to check on the knock and rough idle, it went to hell. Lucky it was already at the dealership
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Yep, 5 yr/60 K powertrain warranty so your car should still be in warranty for that. Check with the dealer as to what is causing the error code and go from there. Hopefully it is something that would be covered.
Last edited by Vetteman Jack; Oct 13, 2019 at 11:47 PM.
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Racer
Joined: Apr 2013
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From: york south carolina
i had that on my 2017 z06. it happened only once. 3000 miles later still gone. misfires always happen. maybe it was one to many. but its hard to troubleshoot a problem that is no longer there.
Melting Slicks
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From: North Carolina