Pathfinder 5.6L V8

Hi,
I have a 2008 5.6L V8 Pathfinder imported from US and now the "Service Engine Soon" light is turned on. I understand that this is that a failure is detected in some emission circuit.
It can be wired or hoses. I know that disconnecting the battery can reset the light but the problem is not solved. In the official Nissan they are not able to find anything because they are not worth their machine. Why do the mechanics in the Nissan do not understand the readings that Lamaquinita gives them when they plug in my car? Do you use the Consultii or Consultiii? Isn't electronics compatible?
Greetings
PD. Yes, it's very fast. he he

The machine does not work because the injection system can be the same, but the diagnosis is not taken, the codes change according to countries and the injection system they bring, now spc max reads them because I have it hahaha and I have tried it, look for a scanning layers of doing so