Fuelmiser Ignition Coil - OEM quality, fit and performance Manufactured to strict OEM specifications, Fuelmiser Ignition Coil units are a great option for your engine. With OEM quality, fit and performance, these replacement ignition coil units will fit just like the original without the need to make or modify bracketry or hardware, will perform just as well if not better than the original for a consistent, reliable strong spark and will also match or outperform the original unit in terms of longevity and service life. With a catalogue of over 40 product groups all meeting or exceeding OEM standards, Fuelmiser knows what goes into great replacement parts for your car. Sourced from world-leading manufacturers, Fuelmiser cover most popular late model applications in European, Asian and domestic applications, so chances are they have the parts to suit your car. An ignition coil, also called a spark coil, is a type of induction coil and plays a major role in your car's ignition system. It's task is to convert battery voltage into the voltage required to send through the ignition leads and allow your spark plugs to ignite fuel vapour in the combustion chamber, thus creating powering and propelling your car along the road. Without your ignition coil, ignition leads and spark plugs in correct working order, you will experience misfires, poor fuel economy and maybe even a car that won't start at all. Traditionally the coil sits in the engine bay and is linked to the distributor which then links the coil to each sparkplug, however technology advancements have seen this arrangement altered but the basic principles are still retained. If you're unsure whether your coil needs to be replaced, there are a few tell-tale signs which can indicate that a replacement is required. The most obvious and common issues are poor engine running. This includes misfires, rough idle, loss of power and even bad fuel economy. In extreme instances, these performance losses may even result in random engine stalling. A check engine light can also indicate a bad coil pack or ignition coil. You can confirm this using a code reader and searching the engine code to see what went wrong, sometimes this will even tell you which coil pack to replace for coil-on-plug applications. A faulty ignition coil can also prohibit your car from starting at all. This is more-so a problem for single ignition coil set-ups since a faulty coil will affect the operation of the entire engine.