Power loss in Renault Traffic

Hello everyone, I have a problem with my 2004 traffic (1.9 dci 100cv) and see if you can help me? To walk it well, but lately when you accelerate it does not have or accelerates with a few seconds later. Go but slowly and you have to try another to accelerate and then it gets good, to see someone if you can give me a hand,
a greeting to everyone

Clean the EGR, the first thing may be dirty or open

Thank you, I'm going to try, but the problem is that I do it two or three times and then it works the same a week well. And when we put anything out.
Greetings to all

That is exactly Egr? Even me please.

I would say that you make a check to the engine sensors since there are failures of power loss that can come from any of these sensors that in their see make a feedback between the ECM (motor computer) and affects directly on the fuel injection.

TPS sensor, MAF sensor, MAP sensor, oxygen sensor, EGR valve.

It also takes into account the pressure of the fuel pump may be failing.

GREETINGS