Are you driving with the power switch on and
the VSC switch to the off position (light on)?
My 02' has no lag at all. The first SC430 I tested
I allmost scraped the idea of buying one. I think
someone 'babbied" it and It had lots of lag.
The next one tested must have been owned by
a lead-foot, It had more acceleration. The one
we bought had 33,000 miles on it and the harder
I drove it the better it ran. Check your air and fuel
filters also. I replaced mine with a K&N air filter
and it helped a little. Drive a low mile demo to
compare acceleration.

Good Luck

Go to the dealer and yell FIRE!!!
till you get what you want.

 

ok, now i'm really pissed! Besides the whole throttle issue now I have ants in my car thanks to my last trip to the dealer.... yes... ANTS! Hundreds and hundreds of it. I guess when it rains in Florida they find cover and my car was the perfect cover. Needless to say I am livid!!! I barely got the car, and so far I have crappy acceleration and Ants... Did I mention that I'm allergic to ants? Tomorrow I'm going to the dealer and it should be an interesting situation.

By the way, I took the 01 LS430 that I have for a spin. Acceleration is like it's supposed to be for a 300 HP car. I expect just as much from the SC...

Lemon law here I come...

 

I found this on Toyota's Press site:

Road-Reading Throttle Control: Seeking to enhance driving smoothness at every level, Lexus equipped the LS 430 and SC 430 models with a system called Intuitive Powertrain Control. Working with the electronic throttle control, the system helps to smooth out acceleration from a standing start by very slightly delaying throttle opening when the driver steps on the accelerator.

http://pressroom.toyota.com/photo_li...4lexus_tech_r2

 

just great.... let me give you my review of the system.... it sucks monkey @ss! I do admit that it is very smooth, and the power flows VERY progressively, although in my opinion it defeats the whole purpose of the SC. I understand using it on the LS, but not in what essentially is a Sports Convertible.

When you press the accelerator, you get a little lag, and the car starts accelerating slow, and then progressively increases the power. It seriously feels like you're in an underpowered car - you don't get the gratification of press the pedal and take off.

Now that my car is in service for the ant problem (mind you i had possession of the car for 3 days out of 10), I have an ES loaner... and even this feels more responsive than my SC.

Is there a way to turn that crap off?