Nissan K11 does not pass the 100 km

Hello, how are you, I have the next problem with my Nissan K11, when the throttle is at the thorough accelerator the car does not replace it, it feels heavy and the 40 km is a power but it only reaches 100 km and does not accelerate more having the pressed accelerator and does not respond as it reaches the limit. The car is automatic and the overdrive works.

Hello everyone, Jimtom: according to the symptom that you describe the most likely that they could be 2 things.
Problem in the ASCELERADOR POSITION SENSOR or a Comverter and/or Automatic Box problem. To help you it would be useful to know if the witnesses of the board (check) go out or not with the engine working. When are you for example to 70 kmh and step on the thorough acceleration, you feel any change of marches or nothing happens? The other would be to verify the level and "clarity" of automatic passee oil. How many kilometers does your car have? Have you ever changed the oil to the box and its filter? Greetings to all.

Hello again, well the car changes well, the transmission oil is never changed and if it has a dark color, even when the floor goes to 70 and throws strongly but when it reaches 100 it does not give more it does not respond

Hello atodos, Jimtom, if the oil has a dark color and is not transparent, and additionally with a strong smell (it does not have the normal smell of the ATF), most likely that the automatic box has suffered wear of its main compounds. In Tofdo Caso you would have to do the diagnosis to the box to be safe. Additionally, do you feel that the Patina box? that is, as it happens in mechanical cars when the clutch dies and skates, that is, the engine revolutions rise, but the vehicle does not advance? How many kilometers do you have? Greetings cordials.

Do not skate, it already has more than 100,000 thousand km, but I will change oil and transmission filter.