I have a 92 SC400 (just bought it, 197K on it) and it's always run fine up untill last night. I started it up, put it in reverse, and then I noticed that I was moving very sluggishly. I looked down and that "Engine" light was flashing. I put the car in park, turned it off, then restarted it and it drove home just fine. It did it again today after I pumped gas and went to start the car, and I did the same thing again to re-start it. Could anyone PLEASE let me know what this could possibly be and how to correct it? Thank you so much.