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An ignition coil is an essential component in an automotive engine's ignition system. It is responsible for converting the low voltage supplied by the battery into the high voltage required to create an electric spark that ignites the air-fuel mixture in the engine's cylinders. This spark is necessary to initiate combustion, which drives the engine's pistons and generates power. The ignition coil typically consists of a primary winding and a secondary winding, which are wrapped around a laminated core made of iron or other magnetic materials. The primary winding has fewer turns and is connected directly to the battery, while the secondary winding has many more turns and produces the high voltage required for ignition. Ignition coils can fail due to various reasons such as wear, overheating, or exposure to moisture. A faulty ignition coil can cause a range of symptoms, including difficulty starting the engine, misfiring, reduced power, and increased fuel consumption. Therefore, it is important to regularly inspect and maintain the ignition system, including the ignition coil, to ensure optimal performance and longevity of the vehicle.