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Can A Bad Spark Plug Cause Check Engine Light? [Solved]

Faulty Spark Plugs A problem with either your spark plug wires or the spark plugs themselves could cause your check engine light to come on. Ignoring this problem may lead to a clogged catalytic converter, damaged ignition coils, or problems with your oxygen sensor.19 Nov 2019

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Check Engine Light - NGK Spark Plugs - Tech Video

Brief explanation of

5 Signs It’s Time To Replace Your Spark Plugs

Do you know when it’s time? This video is sponsored by Autolite.