Doger Ram 2500

Hello people.
I have a 2500 Doger Ram with the problem that RPM is hung ratiaing and slowly falls.
With the Scaner, COD: P2509 and P1757. Borre COD and COD P1757.
If anyone has a similar case or a solution, advice? It will be well received. Thank you

Year and motor?

The COD. P2509 refers to a fault with internal memory but that is very rare that it happens and if when you erase it it no longer appears it is because perhaps the battery is left without loading or rather with little load the battery and that is why I store that fault and the other DTC refers to a pressure of low governor. This could be produced by the low RPM you mention or by a transmission failure either electric or hydraulic. If your problem is that the vehicle does not accelerate and the custom RPM fails further until they reach the point of extinguishing, the best is that you try fuel pressure, the pressure of the electric transfer could be low. I had a problem with a Ford worked normal but as I heated, he failed high RPM until he reached the point that he no longer advanced and went out, what was not specified if I am not mistaken was 75 psi and when the pressure fell to 20 psi. It is not others that you review the transmission oil pressure for the fault code that persists. Any questions we are all in order