I own a 2000 RX300 with about 60,000 miles on it. In April 2005 it stalled while sitting at a red light, it started right back up. Took it to the dealer and he said it needed the injectors cleaned which I did. A few months later it stalled again while be driven, it started right back up. This happen a couple of more times and it always starts right back up. I took it to the dealer and he replaced the idle control valve for about $470.00. A few weeks later it stalled again. Took it back to the dealer and he kept it to drive to try to get it to stall for 2 weeks, it did not. Took it back and a few weeks later it stalled again. Took it to the dealer and he has kept it for 2 weeks and has found nothing wrong with the car. I am suppose to pick it up today. Does anyone have any suggestions, or has anyone had the same problem?