Nissan X-Trail, accelerates without load

We have an inconvenience with the Nissan X-trail, the fault is that when it is in p or in n the truck accelerates until 2000 rpm, when activating the change well it is in R or D it is normalized and remains in 900 rpm, and I can turn on air and radio lights and it works perfectly, the damage is only in p o n, we already check all the sensors and the scanner does not show any error, and the values ​​are. what can it be?

Hello I have had the same problem here in Panama and with the same car and also in the first.
In the case of the strange I have to ask you if when driving to the car, the acceleration is irregula

accelerating down )

I apologize lña discomfort, I forget to tell you that it is the engine that accelerates and decelerates is a step by step, I solved the problem reprogramming the ECU, I had to take it to the consequence.
thank you

The problem can be inside the box, in the acceleration valve, it controls the main pump brake, it is possible that it is damaged or stuck and is not detectable with Scaner .. only with handling test