The purpose of the ignition system is to ignite, or fire, the spark plugs in order to generate power to run the engine. To do so, the battery sends current to the ignition coil. Then that high voltage ...

Causes: This is often caused by a worn-out key, a damaged ignition cylinder, or even a steering wheel that has locked up. Repair: In many cases, the key can be recut or replaced, and if the ignition ...

At 7,000 rpm, a spark plug ignites the air/fuel mixture nearly 60 times per second. Any one of those 60 sparks going amiss can at best be mildly annoying, and at worst cost you a race or an engine.