So I looked back at my pictures from the misfire issue I had last year. I was driving back from vacation trip to Disney. 6 hour trip. Probably 3 hours in. Began to run rough. Ran fine for three hours of highway driving but when I got to lower rpms on a side road it began to run rough. I scanned it on the spot and got codes for “combustion misfires several cylinders, misfire on 4, 5, & 8, and a catalytic converter conversion” code. Was all solved by new spark plugs. I was able to get home at highway speeds and slower acceleration on slower roads. Sound like your status? This was 20,000 miles ago.


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