Freaky acceleration experience

[Barbara]

Last night when I was driving my 2008 Yaris home late from work on a desolate road, all of a sudden I had absolutely NO exceleration power. The car runs so quiet that at first when I steered it over to the side of the road I thought it had died completely but, that wasn't the case. It was still running just no exceleration. I turned the key off and it re-started with no problem and then ran properly the rest of the way home (about another 8 miles). I went out and double checked the oil and coolant today and they are at required levels and clean. The car continues to start today and i pushed on the excelerator and it sounds fine. No noises or smells going on. However, the second I lost exceleration briefly last night the Check Engine light came on and is staying on.

I purchased gas at a Chevron station that I used a few times a couple of days ago and have noticed since then a feeling of poorer exceleration - it's not consistent - very irratic.

I'm wondering if I could have gotten some bad gasoline??

Any responses would be appreciated.

Thanks