Bought my CForce 600 late last year. First time out, check engine light came on after some mild riding. No change in performance. It also did not display the code on the display as the owner's manual touts. After letting it cool for some time, started the engine and the light did not come back on. Fast forward to today. Still less than 25 miles on the machine, took it out today in warm weather. No check engine light at first, then came on after some time. Could not wait around to see if it will disappear when cold again. Again, no codes displayed on dashboard. My dealer has not heard of such a problem. Has anyone here?