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Okay...I also should have stated that the rankings are a monthly ranking, and then the month is only half way through When you look at the quarterly or annual rankings they actually do differ. So whilst the Baleno is not that popular it might not be as bad as the number depicted in this particular list. Let me see if I can pull out an annual or quarterly , but for the most part what you observed holds...kei cars and somewhat larger family cars and compact cars sell quite well whilst the mid sized sedans don't (in fact Honda is hoping the new Civic will change that in Japan). As for the Leaf, you do see the Leaf quite a lot. In this particular ranking the Leaf is probably not even on the list because the previous model's sales stopped and the new model's delivery has not yet gotten in to full swing. I can't think of any such time frames to get rid of ICE vehicles off the top of my head. However, the auto industry and the govt is banking heavily on FCVs and EVs. They are starting to go around putting up Hydrogen stations and they believe by 2020 all the major cities will have Hydrogen stations. Also, they are planning on having Hydrogen buses, etc for the Olympics in Tokyo. Mid last year they announced that there were more EV charging points/stations in Japan than Petrol stations. So yes...they are definitely pulling away from fossil fuels. (EDIT: Okay I can't find an combined list but there are plenty of lists for each category of vehicle; again, newly released models seem to creep up on these lists) http://www.jada.or.jp/contents/data/ranking.html <<-- excludes kei cars

It would be a better comparison if you compare C-HR and the Honda Vezel. https://cars.usnews.com/cars-trucks/toyota-chr-vs-honda-hrv

A few notes: - these rankings are based on actual registrations so to get a better idea of what is doing well you have to look at it over a period of time - when new or updated models get released those models get a huge bump up in the stats because a surge of registrations occur as pre-orders get delivered - Kei cars get sold by the ship load in Japan. Even on the road for every normal car you see you will probably see 10 or 12 kei cars. So normal popular cars get kicked off ass soon as you take in to account kei cars. - Yes...large cars do well because those are considered "family" cars and executive cars. For example, a family might have one kei car for daily use for one of the parents whilst a proper full size car for the family to run around in. - If you take statistics for each class then the Prius has been consistently doing well. Same with the Vezel which got bumped down a bit when CHR and CX-3 deliveries started taking place. - Yes Aqua and Vitz (after the Hybrid was introduced) are competing each other. The talk at the Tokyo Motorshow was that for the next generation of the Vitz and Aqua for the JDM market they would be introducin a combined model. Same fate for the Axio, Premio and Allion..a combined sedan. To further stop any self canibalization of its own models Toyota is now offering all models (at least new ones) through all of its sales channels (before each sales channel was responsible for specific models). - Cars like the Axio, Premio/Allion were predominantly popular as fleet vehicles for sales staff...and now those vehicles are being replaced with more eco friendly vehicles and companies are changing their fleet/transport strategies as well. Also, those models are pretty darn old

You should not screw around with the throttle position, pun intended. The throttle position is set from the factory and shouldn't really be messed around with unless you have a way to read the voltages. You should adjust idle from the idle adjust screw, im not sure where exactly yours is located but it should be in parallel to the throttle plate. Also your throttle position is reset every time you reset your ecu (removing the battery) so there is no point in adjusting this. There is a minimum operating voltage for the tps (usually 0.20v) if you go below this it will give a check engine light.