it all might be a ecu problem, dunno if a reset will make everything better. regarding problem 2, how many revs is it doing at idle-it could be a bit low(i would say around 700rpm is average). with problem 4, how high is the engine revving when started up and does it happen when started for the first time after many hours(when it's cold) or even when the engine's hot? because my aunt has one of those camrys and it usually revs at about 1100-1200 revs when its cold before it slowly drops. problem 5 could be a suspension problem(dunno which component), or a wheel alignment not done properly.