Spark plugs receive electrical energy from the Ignition Coil0 and discharge it into the compressed air-fuel mixture in the Combustion Chamber0.

Overview#

The spark plug is a critical ignition system component responsible for initiating combustion by creating an electrical arc across a gap. This arc ignites the compressed air-fuel mixture at precisely timed intervals, driving the engine's power cycle.

Function#

• Receives high-voltage electrical signal from the ignition coil
• Creates an electrical discharge across the electrode gap
• Ignites the air-fuel mixture in the combustion chamber
• Operates under extreme temperature and pressure conditions

Key Parameters#

Important

Spark plug condition directly affects engine performance, fuel economy, and emissions. Regular inspection and replacement per manufacturer specifications is essential.

Tip

Proper gap setting and heat range selection are critical for optimal combustion and engine longevity.