Try a throttle reset I know its on the site here somewhere. You insert the key.Turn it most of the way on with out starting the car. The dash lights and stuff should be on. put the gas to the floor (my favorite part) Hold it there for 5 seconds. Turn the key to the off position but do not remove it. let your foot off the gas pedal.wait 2 minutes for a full reset.Then you can drive I do this whenever the car feels sluggish.