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The check engine light in my 98 Outback has been on for a couple days, got the code checked and its P0304 cylinder 4 misfire. Car seems to be driving fine. I will replace a plugs and wires tonight, it has 120k miles and the original wires.


I was wondering when the CEL light will go out by itself assuming the problem is resolved? Does the fact that it has stayed on indicate a continuing problem, or does some time/milage have to elapse before it will clear itself?



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