2007 Yaris - Check Engine Light Flashing - Causes?

[white89gt]

Hey guys, I just got to work and had a fun little travel in. The little Yaris was going just fine at 85 mph down I-80, then I went to pass someone. I got to 90, and the CEL started flashing and it made me go back down to 80 mph and quit flashing. A few mile later, I got it to 90 with no issues - but I was able to repeat it 2 more times. I am just trying to figure it out.

I work 40 miles from home, so I am wondering if this is anything any of you have experienced before? My code reader is at home, or I would have done a diagnostic scan already. Because it was flashing and did not stay illuminated, will the code even be stored in the ECU? I am a Ford guy with a Toyota, so I don't know much about how Toyota does things.

Thanks!