Nisan Frontier Truck 2009

Hello friends:
I have a problem with several Nisan Frontier trucks all mod 2009.
The issue in question is that when the 2500 motor turns passes, the vehicle leaves me with the limitation of reaching consistent and after the fourth time it stops directly (the curious thing is that I take out the file of the first injector and then walk well until the new fault.

give
me answers and the Scaner does not accuse me. injection flute sensor and remain the same since thank you very much and I am awaiting your answers