should I replace coil packs
Thread Starter
2nd Gear
Joined: Mar 2024
Posts: 2
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should I replace coil packs
Hello All , I recently inherited my fathers 2014 Corvette Stingray it has 12000 miles obviously it was not driven much, But I am throwing POC300 code (miss fire). I am going to replace the spark plugs but should I also replace the coil packs and should I upgrade the coil packs or just buy OEM. It Has AFE cold air induction and at throttle body controller only Thank you in Advance.
Race Director
Joined: Jun 2013
Posts: 12,412
Likes: 1,750
From: DFW TX
I would do 3 things:
unplug & replug the spark plug wires from plug and coil pack (lube em up a bit when re-plugged). Unplug & replug the coil pack harnesses as well. Inspect closely for corrosion.
Dump a bottle of Seafoam or Techron in the fuel.
Run it, including some nice hard pulls when fully up to temp.
I suggest don't start throwing parts at it until you know you have an issue. The car is basically new, only time has taken it's toll. have fun!
unplug & replug the spark plug wires from plug and coil pack (lube em up a bit when re-plugged). Unplug & replug the coil pack harnesses as well. Inspect closely for corrosion.
Dump a bottle of Seafoam or Techron in the fuel.
Run it, including some nice hard pulls when fully up to temp.
I suggest don't start throwing parts at it until you know you have an issue. The car is basically new, only time has taken it's toll. have fun!
Racer
Joined: Jan 2009
Posts: 395
Likes: 194
From: Goderich, ON
Unless something catastrophic happened your spark plugs and coils are still good, something else is causing your misfire. Especially since P0300 is random misfire, not any particular cylinder. How old is the fuel?
Team Owner
Joined: Jul 2004
Posts: 28,418
Likes: 3,273
From: Hartford WI
Take out the filter and clean the MAF with the appropriate cleaner. After that, remove the throttle body controller. Run the car till the gauge is empty and a little bot and use the highest octane you can get from a busy gas station. At that point, the car is now stock and it might be easier to diagnose problems.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,498
Likes: 3,999
From: Cape Coral, Florida
Hello All , I recently inherited my fathers 2014 Corvette Stingray it has 12000 miles obviously it was not driven much, But I am throwing POC300 code (miss fire). I am going to replace the spark plugs but should I also replace the coil packs and should I upgrade the coil packs or just buy OEM. It Has AFE cold air induction and at throttle body controller only Thank you in Advance.
Team Owner
Joined: Jul 2004
Posts: 28,418
Likes: 3,273
From: Hartford WI
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Race Director
Joined: Apr 2000
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From: Texas
I would do 3 things:
unplug & replug the spark plug wires from plug and coil pack (lube em up a bit when re-plugged). Unplug & replug the coil pack harnesses as well. Inspect closely for corrosion.
Dump a bottle of Seafoam or Techron in the fuel.
Run it, including some nice hard pulls when fully up to temp.
I suggest don't start throwing parts at it until you know you have an issue. The car is basically new, only time has taken it's toll. have fun!
unplug & replug the spark plug wires from plug and coil pack (lube em up a bit when re-plugged). Unplug & replug the coil pack harnesses as well. Inspect closely for corrosion.
Dump a bottle of Seafoam or Techron in the fuel.
Run it, including some nice hard pulls when fully up to temp.
I suggest don't start throwing parts at it until you know you have an issue. The car is basically new, only time has taken it's toll. have fun!
Very typical when there's a misfire and it's free to do.