Consult Problem Changes Nissan March 2012

Good morning. I tell you .... I understand that the accelerator is electronic, which is why I think that when the problem was presented just by turning off the car and understanding it again I was fixed at that time. The engine synchronization I imagine was related to the strong accelerated that had the car on the different marches. When they delivered it to me it seemed a brious horse with each march .... but now it is much more suabe and only when I thoroughly press the car releases its entire power.