Consult Problem Changes Nissan March 2012

Good morning. I wanted to let you know... I understand the accelerator is electronic, which is why I think the problem arose simply by turning the car off and on again. I imagine the engine timing was related to the strong acceleration the car had in different gears. When I first got it, it felt like a spirited little horse in every gear... but now it's much smoother, and it only unleashes its full power when I floor the accelerator.