The spark plug tester is an easy way to test your spark plugs. Spark plugs are often replaced when your engine has a misfires but usually it does not fix the problem so its better to just use one of these to check them.
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Hi, I am Juraj “Yuri” Lukacko. I got frustrated by unhelpful and scammy mechanics, so I decided to learn everything about car diagnostics myself. I test dozens of new car diagnostic tools every month along with learning new strategies to fix and customize cars. About Juraj Lukacko (Yuri)