Why is dwell time important to ignition system operations?

Dwell time is crucial in ignition system operations because it determines the duration that current flows through the ignition coil, allowing it to build sufficient magnetic energy. Proper dwell time ensures optimal coil saturation, which leads to a stronger spark when the coil discharges. If dwell time is too short, the coil may not generate enough voltage, resulting in weak or misfires; if too long, it can cause overheating and damage to the ignition system components. Thus, maintaining the correct dwell time is essential for efficient engine performance and reliability.