ስፓርክ ሶኬቶች ወደ ሞተርዎ "መስኮት" ናቸው (ብቸኛው የዓይንዎ ምስክር ለቃጠሎ ክፍሉ) እና እንደ ጠቃሚ የምርመራ መሣሪያ ሊያገለግል ይችላል።
Spark plugs are the "window" into your engine (your only eyewitness to the combustion chamber), and can be used as a valuable diagnostic tool.