Jaguar X-Type 2.0d from 2005

Greetings I need help I have a Jaguar X-Type 2.0d from 2005, and lately when climbing some slope even if it is not very pronounced when accelerating it, the chivato of warning is turned on that it is like a small resistance, yellow, which is the one that turns on when we are starting the car, and then the vehicle loses all the power, until I turn off and come back and go back and go back to it and go back and go back and go back and go back to it. You can help me telling me it can be.

If fuel and air filter replacement, you must check the injector rail that does not have the fuel pump.