I will take your word for it... man, if they had used fully sequential injection I would get 40 mpg instead of 33!
Dunno if it would make that large of a difference... I guess this kills the cam sensor issue, wasted spark is fine if the injection already is paired. Sweet.
Here's some random facts:
The improvement of sequential injection on mileage depends on driving conditions. The improvement is mostly seen at idle and very low RPMs. Only until around 2300 RPM can most engines inject fuel before part of the fuel is injected on a closed intake valve. But that isn't a bad thing as you might think, since this cools the valve as well as speeds up the vaporization of the fuel.
Sequential ignition on the other hand(if I remember correctly!), doesn't have any effect on mileage or power really. It's just like wasted spark, but without anything being wasted. And since the coils are being fired less often there is less wear/longer life for ignition components and since they have more time between firings, the coils can reach higher RPMs and be smaller without overheating.
