Engine Feels Like Its Going To Drop Out Sometimes When I Let Off Gas W

[Rapril1974]

Hello. I just purchased my Lexus LS400 (1995) in May. This is the nicest car I've ever had and I've had alot of cars!! Even though its older, it's still awesome!!! Anyways first off, the check engine light came on but doesn't seem to be driving any differently. Also sometimes when I'm driving, if I accelerate and then let off the gas quickly, the car feels like the engines going to drop out. I hope I'm describing it properly. Also have a question about the mileage. I didn't know that the guy was suppose to fill in the mileage on the title, and when I first got it, it said around 99,000. Now I know that's not right since he gave me two folders of paperwork and service records show it over 169,000. Now it flipped to 100,000 and just it can't be right because there is a place for the "1" to light up so how do I know what the Actual mileage is? I e always had my dad or hubby do everything w cars but I want to learn more about my new favorite car. Plus if I ever sell it, I would need to know what it is. Any help is appreciated :). Thanks :)

April