Will changing a spark plug/wire have a chance at fixing a cylinder misfire?
Code PO303 showed up when I got my oil changed. They said it was a cylinder 3 misfire.
Would changing the spark plug, and wire, maybe fix that? I am in no way able to pay for
someone to diagnose it and fix it, and I can change the plugs/wires myself. So I was
wondering if theres a change it'll fix the misfire, or if I shouldn't waste my time changing
I'd replace the plugs and wires and see what happens. It very well could be your issue. Plus if you haven't changed them yet, now would be a good time.
Google your car + code P0303 and see what comes up. You'll likely find some additional guidance there.
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