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Po302 and Po204 hard codes
My 2016 X3 2.8i X drive has been running wonderful until a little while ago when out of the blue it developed a misfire.Read the codes, Po300, Po302 and Po304 all showed up. Tried swapping #1 coil with #2, codes stayed the same. A little less than 72,000 miles on the vehicle, plugs changed Aug 2021,app. 18,000 miles ago. At a loss as to what to check now.
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