So far, all of these supposed fixes DON"T work satisfactorily. From day 1 of my ownership of a 2003 ES I noticed that I had to cater to the whims of this transmission, electronic throttle, problem. Yes, I can minimize this idiosyncrasy, but why should I have to do this? I want the car to respond to MY commands. This is the only gripe I have with this otherwise fine car. I'm not sure if it's been corrected in the '05, but from what I've heard, it hasn't.
BTW: I have always been able to replicate this problem on EVERY '02 to '04 ES that I've driven, and that is over 20 cars. I can always drive it smoothly also....but that's not the answer.