I don't what happen

[yabo0569]

Hello everyone I'm new at this forum, but not new with ducati bikes. I have my HM for almost a year now and I love it.

Today I went to fill up at the gas station. After filling up my check engine light came on. I didn't why I stop and re open the gas cap and closed it back. I started the bike up and the light was gone. Does any body now what the hell happen is there a sensor in the gas tank?

[acesanugal]

It was the Matrix.

[st2lemans]

My 999R does that every so often, several times after fuel stops, others after other short stops, once or twice last year, and about 4 times this year, no idea why.

Tom

[CDONA]

I got the light first thing this morning before I fired it. I cycled the key to erase. My guess it's the flapper. It does this on occasion.