•  Distributorless ignition coils have been adopted, and two ignition coils are installed each on both the trailing and leading sides. By adopting the distributorless ignition coil, the distributor has been eliminated in order to simplify the parts of the ignition system, and also to prevent voltage reduction occurring between the parts improving firing efficiency.

•  Independent firing control has been adopted to eliminate firing without spark, increasing firing energy.

•  The firing timing of the coil is controlled by the PCM for optimum ignition timing control.