Jailbird

I have 4500 miles on my '08 and the throttle seems very sensitive. I'm not sure if it's just me or if there is something wrong. When I drive there doesn't seem to be a smooth transition between on and off throttle. Is this common?

-Brian

boostedbox06

can you elaborate on the problem a little more?

ZTC

i notice it too. when i drive up the hill to my house it almost always used to bite as soon as i finished the turn and throw me back into the seat. i figured out how to avoid that but sometimes when going from a dead stop it jerks too.
i think thats what he's talking aboute

Jailbird

This is a pretty good explaination. It seems "jerky". When I apply the throttle, there is nothing for just a bit (maybe .25" of travel in the pedal) then the throttle comes on with a jerk. The same thing happens when I let off the throttle. Ease it out and the car slows down, then again with about .25" of travel left in the gas pedal the throttle just cuts out.

I realize the tC has a drive by wire throttle but other cars I've had with this were much smoother, witch leads me to think there might be problem.

-Brian

boostedbox06

do you guys have stock exhausts and catalytic converters? I have heard that sometimes if the cat gets clogged it won't accelerate as it should....what other parts have you guys done engine wise?

scionteecee

This happens on my other Toyota but service dept said that's how it's supposed to be so i dunno.

IcetC

yea I noticed this happens to b/c of the drive by wire throttle it happens to me when I hit bumps I bounce off the throttle a little bit a the throttle jumps a little I know what he is talking about

boostedbox06

ya I wondered it the drive by wire had anything to do with it

jiggadomino

i remember this was covered in a previous post
it is just the computer processing the info for throttle or no throttle

when i took off my gas pedal to install my gts pedals, you can really see how thorttle by wire works. Old cars have a metal wire directly connected to the throttle; but with throttle by wire, the pedal tip spins a small lever connected to the computer by wire