Started into traffic and vehicle quickly slowed way down and then started to move again. At next light power lost again. Do not remember if warning light came on but it was not there prior to the incident. Towed to dealer. Fuel pump replaced. One month later accelerating to exit in heavy traffic it lost power. Engine light came on saying something to the effect engine power lost. It Started back up quickly and I got safely where I was going. It was running ok so I finished another 400 miles of trip. Dealer service tech on phone said probably stabilizer did what its suppose to do and probably avoided something serious. Not too much driving since then but I can tell I dont have the pick up I should have when accelerating. Afraid each time I give pressure to the pedal that it might stall again as it dsnt pick up speed as Ive been used to. Taking to dealer for 30,000 mile service and to check this out. Was told if no dash light warning they could check it out but probably will check out fine.