Delivers the spark across a fixed gap inside the combustion chamber. Wear widens the gap and raises the voltage needed to jump it, which eventually overloads the coil — so worn plugs are a common cause of coil failure rather than merely a coincidental finding.
Also known as: plugs, spark plugs, sparking plug, sparkplug, ignition plug
Referenced by 108 codes
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An ignition lead is not really a wire. It is a tube of insulation with a conductor down the middle, and almost everything that goes wrong with one is a failure of the tube rather t...
A spark plug has one job and it is harder than it looks: put a spark across a gap, in a cylinder full of compressed mixture, tens of times a second, for years, without wearing out...
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