Today I was driving to work cruising at about 55 mph and 1500 RPM when I lost all acceleration. I pumped the gas and nothing. The car then had a low oil pressure light come on and died. I pulled over to the side of the road checked my oil level and it was fine. I then tried to restart the car and it would crank but not start. No pops, bangs or any loud noises occurred. No oil leaking anywhere. Please help me start this diagnosing process. ANY advice will be greatly appreciated!!!!