Hi all,

Thanks for the assistance in advance. I had a cylinder misfire while driving under low acceleration which caused the check engine light to blink. I stopped driving, turned on the car today, warmed it up, and drove to Autozone to get my codes read; no problems after warmup. Results: P0302, P0133 & P0411. I have had the check engine light on for years now with no problems, so I really care about fixing the misfiring.

To fix the misfiring, should I first try replacing the ignition coils and spark plugs? They haven't been changed for at least 30,000 + miles. Any other steps I should do first?

Thank you.

 

yes they should've been replaced by now. Start with the spark plugs and wires, coil pack should be the last thing you replace