it's odd, but i noticed this with my old car. today was a cooler day out, it was hotter yesterday. when i drove my tC, it had better accelleration than it did yesterday. i know this sounds like a load of crap, but believe me, i even managed to over rev going into second a couple of times, that never happened before. it just seemed to respond alot better than it usually does

also, for some reason, after i got out of work, after working for 6 hours, i started my tC and it took like 5 seconds before the engine finally started, the starter just kept turning for 5 seconds. it did this two other times, when i first got it and it was frigid cold and another time a month later when it was kinda warm and i was low on gas. i have 3/4 tank today and about 2750 miles.

 

colder air is denser, denser air means more gas can be added which means more power. your car will actually have more HP on colder days

 

yup and for the driving experience... i think its jus you..

i have good days and i have bad days mayb u were on a good day

 

exactly

 

the starters suck on these cars, my honda would click over right away, I seem like I have to hold the key to crank it for way to long.

 

I have noticed this, its like how many seconds do i have to hold it for it to sttart. My beater accord with 300k and oem starter starts quicker than the tc

 

the car takes a long time to start, but i havent heard of anyone actually having any problems with them yet.

 

You have that backwards chief,

Leaner a/f mix = more power
Rich a/f = less power

Colder air is denser , you are correct on that, however since its denser it wont require as much fuel to burn the air and that is why your car will feel like its responding better. However were not talking about a big increase in power, For every 10 degrees in temp drop you gain like 1hp,

 

I notice that after leaving the car alone for a few hours or overnight, when I go to start it, it sounds a little hesitant (nothing terrible). It always starts, so its not really a problem, but lately I noticed the hesitation is more frequent. I initially thought it was due to the cold since I purchased the car during winter. But its warm now, so I cant use that excuse no more. Im gonna ask the dealer about it at my next oil change. But I dont want them to tear the car apart or anything. Has anyone else had this issue addressed? If so, what was the outcome?

 

the ignition starting question has been discussed already.

 

To my understanding, I think he was actually right. I believe he simply said, adding more fuel. Adding more fuel to adjust to an increase in incoming air (which the ECU does to an extent) is not making the ratio rich, it's keeping it closer to stoic. If, however, more fuel was added and the volume/density of air was the same, then yes, that would be making the mixture rich. But since the density of the air is changing (increasing), adding more fuel to adjust for that is done to keep the a/f as close to stoic as possible. Just as the ECU would try to adjust to an increase in air volume from a SRI, or air volume and density with a CAI. The net result is still more power, but I believe adjustments to the fuel maps also play a part in that increase, for the 2AZ, at least. That’s my understanding of it, feel free to interject.

 

Carnot...

 

if you leave your car for five hours the car automatically drains the fuel lines. it takes a second or two to pull fuel back through. read your manual before you post questions please.

 

ok so when you turn the key the pump primes, whats your point, if you leave the car for an hour and come back it still takes longer to start than most cars I have been in.

 

And my car rides 10x better on wet/damp days

 

I think he is right. Denser air has more oxygen to burn for the same volume.

 

has anyone else noticed that almost all hondas make an E E E sound when u started it. You can always tell if its a honda.

 

Exactly. These are all observations that are compared with other cars. I still love my tC, but I hope Scion makes a serious effort to fix little annoying issues for the 06 models. This is my second brand new car. With my first new car i litterally had "0" complaints in the 5 years Ive owned it. With the tC, I just have minor complaints, but still love the car overall.