Got 2016 ed with 73k on it. tried to start it and wouldn’t start then code came up service throttle lever- I pushed start a few times it would just crank then finally started - did that for a day then the engine light went away and was fine for few days then started doing same thing again now it stalled out on me while driving 20 mph and wouldn’t start. Now have no power and won’t go faster than 30-40mph