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Yes, it does fix my problem. No more CEL on the dash and I pass the State Emission test after a week of driving the car with the new coils. I also replaced the spark plugs and spark plug wires thereafter. I noticed just after replacing the coils and the spark plugs + spark plug wires, the car...

OBD Code P0300 Random Misfire I am newbie in fixing my own car but after reading a few forums and looking at the service manual and 2001 Mazda Protege car parts catalog, I decide to do my own tune-up maintenance. I got the P0300 code several times over the past 3 weeks and the exact same...