I have tried the removing the battery cable trick and it's nothing compared to this procedure I found here:
Throttle calibration can substantially improve throttle responsiveness over "factory standard." Many people notice what appears to be sluggish throttle response or a "dead area" at initial accelerator depression. Throttle calibration can take care of these.
1) Insert ignition key and turn to "ON" (not start).
2) Wait for all idiot lights to go out. Check Engine Light may remain on.
3) Slowly depress the accelerator pedal all the way to the floor.
4) Slowly release the accelerator pedal until it's all the way back up.
5) Turn the ignition key to "OFF".
6) Start the engine.
Most drivers notice an immediate change in throttle response, but depending on your driving style, you may need to repeat this procedure periodically due to the computer's adaptive programming. You likely need to repeat this procedure any time the battery is disconnected.
This totally gets rid of any slop or mush in the throttle response but again, this is minor stuff compared to what you get from the very modest investment of a Diablosport Predator. Just the other day I drove my RT around for 20 minutes with the factory tune because that's how it was when I stored it this winter. Frankly, and I hate to say it, she drove like a lardy pig of a car, under powered, unresponsive and reminded me more of driving a big lazy couch around compared to how I remembered driving it DS tuned. Then, I updated my Predator and tuned the car with it, going with the 93oct CAI performance tune and it instantly became brutishly mean and powerful once again. The slightest push of the accelerator shoving the big mean hulk down the road like a fighter jet! Never going back to the factory tune with this car, not even on a bet. Only after tuning with the Predator will you appreciate the night and day difference in driving satisfaction I'm talking about. :smokin: