Will Spark Plugs Affect Engine Power?

[MadelynMarie]

Spark plugs do affect engine power. The operating principle of an engine is that the combustible mixture burns and rapidly expands in the cylinder, thereby pushing the piston downward to rotate the crankshaft and generate power. For a gasoline engine's mixture to ignite and combust, it must rely on the spark plug to produce a strong electric spark at the appropriate moment. Therefore, the quality of the spark plug directly impacts the car's power. The spark plug is a crucial component of a gasoline engine's ignition system, mainly composed of the terminal nut, insulator, terminal stud, center electrode, side electrode, and shell. Signs that indicate the need for spark plug replacement: 1. Weak acceleration: The engine exhibits abnormal shaking during acceleration; 2. Idle shaking: The car engine shows significant shaking when idling; 3. Difficulty starting: The car engine has trouble starting.