Spark Plugs & Glow Plugs

Function of Plugs

Plugs play a crucial role in your engine's combustion process, but their function differs depending on the engine type:

• Spark plugs (gasoline engines): They are responsible for creating the electrical spark that ignites the compressed air-fuel mixture in each cylinder. A quality spark at the right moment is essential for efficient combustion, optimal power, and reduced emissions.
• Glow plugs (diesel engines): Diesel engines do not use a spark for ignition; combustion occurs through auto-ignition due to high air compression. Glow plugs are heating elements that increase the temperature in the combustion chambers before and during cold starts. This facilitates diesel fuel ignition, especially in low temperatures.

Maintenance and Wear Signs of Plugs

Plugs are wear parts that must be replaced periodically.

Maintenance Tips:

• Follow your vehicle manufacturer's recommended replacement intervals (usually indicated in kilometers).
• Use plugs of the type and heat range recommended for your engine.
• When replacing, ensure plugs are correctly torqued to the specified value.

Common Wear Signs:

For spark plugs (gasoline):

• Difficulty starting.
• Engine misfires, unstable idling.
• Loss of power or acceleration.
• Increased fuel consumption.
• Increased pollutant emissions (can be detected during technical inspection).

For glow plugs (diesel):

• Difficulty starting in cold weather (engine struggles to start or doesn't start).
• Excessive smoke (white or grayish) from the exhaust on startup.
• Irregular idling or engine "stumbling" when cold.
• Glow plug warning light blinking or staying on after starting.

Replacing worn or faulty plugs is essential for maintaining your engine's performance, reliability, and fuel efficiency. Konipa offers a range of quality spark plugs and glow plugs to meet your needs.