After a hot 91 degree day and a 60 mile run at the end of a 300 mile trip the check engine light came on. I turned it off and it went away-it does not come on now. The first leg of the round trip was 300 miles but cool and nothing happened on the way down. This was on the way back and it was hot. Bike was just serviced by a good dealer. Bike 2009, Spyder gs, 5000 miles. I keep thinking about what I have read about hoses and leaks thinking that the heat may have caused a hose to leak. thanks Jim