An engine ignition system can include a multifunction controller, and an exciter operatively connected to the multifunction controller. The multifunction controller can be configured to control the exciter to output an ignition voltage. The multifunction controller can be configured to perform at least one other engine control function.

In accordance with at least one aspect of this disclosure, a method can include controlling firing of an exciter of an engine with an electronic controller separate from the exciter as a function of at least one excitation command from the electronic controller and at least one feedback signal from the exciter operatively connected to the electronic controller.