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19/10/2023 4:38 pm
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My Mazda2 / Toyota Yaris IA
starts up slightly rough diagnostic tool reports a cyl 4 misfire.
I've replaced the coil and the sparkplug, but it still idles slightly rough on first start and the same diagnostic comes up about once a month.
Could cleaning the MAF sensor be a good idea? The car has only 55k miles this is the only problem I've ever had.
I've worried that the cylinder is oiling up to cause this but fuel economy is really good.
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