Basic Knowledge of Spark Plugs

Overview

• Function of Spark Plugs: Spark plugs are essential for the ignition of the fuel-air mixture in gasoline engines, converting electrical energy from the ignition coil and distributor into a spark.
• Importance: Without spark plugs, engines cannot run; they significantly affect engine performance.

Spark and Ignition

• Describes how a strong spark is generated between electrodes to ignite the air-fuel mixture.

Spark Plug Construction

• Parts Identification: Detailed explanation of spark plug components with examples such as Iridium Power.

Heat Range

• Definition: Refers to the spark plug’s ability to dissipate heat.
• Impact on Performance: Affects vehicle velocity depending on the heat emanation.

How to Choose a Plug

• Offers guidelines for selecting appropriate spark plugs based on vehicle specifications and performance needs.

Service Life

• Factors: Depends on electrode consumption and material.
• Materials: Different materials wear at different rates.

Spark Plug Installation

• Procedure: Step-by-step guide on replacing spark plugs.

Inspecting and Exchanging Plugs

• Recommendations: Suggested intervals for checkups and replacements based on usage.

Troubleshooting

• Provides methods for diagnosing spark plug-related issues.

Identifying DENSO Plugs

• Instructions for understanding DENSO spark plug model codes.

Additional Resources

• Catalog: Available for download.
• Sales Companies: Information for purchasing and inquiries.

Contact Information: Provided for further inquiries.

Legal Information: Copyright 2018 DENSO CORPORATION. All rights reserved.