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www.reference.com/vehicles/car-igniter-c70fa701bc02414b

A car igniter is a component in the car's engine that is responsible for sending a signal from within the distributor to the ignition coil, making the spark plugs fire. It is also known as the ignition control module. The igniter or ignition control module can be located inside the distributor or may be a separate component on its own.

www.howacarworks.com/basics/how-the-ignition-system-works

The purpose of the ignition system is to generate a very high voltage from the car's 12 volt battery, and to send this to each sparkplug in turn, igniting the fuel-air mixture in the engine's combustion chambers.

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-ignitor

3. Car is not starting. Another symptom of a faulty igniter is a no start condition. The igniter is responsible for providing the signal for the ignition system to fire, if it fails it can disable the entire ignition system. A vehicle without a functional ignition system will not have spark, and as a result will not be able to start.

mechanics.stackexchange.com/questions/38949/what-is-an-igniter

The igniter is the step up transformer that sits inline between the engine control computer and the ignition coil. It takes the low amperage signal from the computer, usually a 12 volt square wave, and steps it up to higher amperage trigger signal for the ignition coil. Most use a high current rated transistor as its primary component.

en.wikipedia.org/wiki/Ignition_system

An ignition system generates a spark or heats an electrode to a high temperature to ignite a fuel-air mixture in spark ignition internal combustion engines, oil-fired and gas-fired boilers, rocket engines, etc. The widest application for spark ignition internal combustion engines is in petrol (gasoline) road vehicles such as cars and motorcycles.

en.wikipedia.org/wiki/Ignition_coil

An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system that transforms the battery's low voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. Some coils have an internal resistor, while others rely on a resistor wire or an external resistor to limit the current flowing into the coil from the...

www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-ignition-switch

Another symptom of an issue with the vehicle’s ignition switch is a car that starts and then suddenly stalls. If the ignition switch fails at the “on” position, the position meant to power on the fuel and ignition systems, it may result in the vehicle starting, and then immediately stalling.

www.wisegeek.com/what-is-an-ignition-switch.htm

A car's ignition switch serves several purposes. First, it allows you to control the power to many of the car's accessories, preventing accessories from running down the car's battery when the car is parked for a long period of time. The ignition switch also serves the far greater purpose of connecting the starter to the battery, allowing the ...

www.reference.com/vehicles/car-ignition-system-work-eb427f1087875530

The ignition system of a car engine works by creating a controlled spark using an engine control unit. The engine control unit determines the best timing to initiate the spark in the ignition system, which then ignites the fuel vapors in the vehicle and starts the engine.

www.quora.com/What-is-an-ignition-coil-in-a-car-What-is-its-function-and-what...

An ignition coil (also called a spark coil) is an induction coil in an automobile's ignition system that transforms the battery's low voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. The p...