My 2015 500 started fine when I backed it out of garage and loaded it on trailer. I topped off tank and went to the woods. It started fine when I backed off trailer. Then it didn't want to crank. Finally started but would not idle, just went dead. Now it will turn over but not fire at all. It has only 412 miles and I have not driven it in a while. I'm sure the gas that was in it was old. Did I maybe stir up trash in tank when I topped it off and drove 60 miles? I hear the fuel pump running when I turn key on. I guess it's going to the shop unless you folks have an idea.