I have Toyota corolla 2017 C.V.t transmission sedan the problem start i was carousing 125 km. The suddenly decreased to 70 km. I Tried to accelerate but it dose not respond till i stoped and disconnected the battery and connected again then its back normal but keeps doing same every 20 or 30 mint .. now when i start the car and gearing from p to D then i accelerate its very very heavy with it 10 to 20 seconds its jumping from 20 km. To 40 or 50 km very quick