1: The presence/absence of coil packs versus other ignition coils adds absolutely nothing to the ability to detect misfires. Misfires are detected in both GEMS and Motronics EMS by the actions of the CkPS, CmPS and to a lesser extent, knock sensors. If you disagree, take it up with the Land Rover engineers who wrote the textbook on Engine Management systems.
2: The benefit of wasted spark is the presence of an ignition spark in the cylinder during the exhaust stroke to improve the consumption of any unburned fuel in the cylinder. Reduces emissions=greater efficiency.
2: The benefit of wasted spark is the presence of an ignition spark in the cylinder during the exhaust stroke to improve the consumption of any unburned fuel in the cylinder. Reduces emissions=greater efficiency.