The yellow engine light is on, had the computer read at auto parts and code P0304 cylender 4 misfire detected - they told me this could relate to my spark plugs and coils. Car is no longer under warranty and i'm not sure what to do since i read coils and spark plugs are usually changed around 60k to 100k miles. What should i do?
My car has 24000 miles.
My car has an automatic transmission.
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