What I mean is that when you slow down, such as for a Yield sign, and then accelerate, there's a second or two in which nothing seems to happen. Then the transmission seems to kick in and the car accelerates hard. Sometimes, when starting from a standstill, the car doen't move and then kicks in hard. By the way, I grew up in the automotive repair business and was even a driver-education teacher, part time, for over twenty five years. When I was teaching, subjects other than driver ed. (that was just an additional job), I would drive about 30,000 miles a year, on average. Now that I'm retired, sort of, I only drive about 20,000 miles a year. So, I do know how a car should respond. Toyota has issued a TSB to deal with this problem for 2004 and up Camrays and Solaras. I'm now trying to get then to reprogram the computer in my car. So far, no luck. P.S. This past weekend my car refused to start. The battery had a shorted cell, in a little over 2 years since new.