Disadvantages of distributorless ignition system

Distributorless ignition systems involve the sparking of plugs directly from the coils. An ignition control unit (ICU) and Engine Control Unit (ECU) control the timing of said spark. Usually, these systems have one coil per cylinder or pair of cylinders. The popularity of such ignition systems lies in their common use of the waste spark distribution method. This method ensures every cylinder is paired with its opposite in the firing...

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