problems in Megane Dt

greetings; I am writing to see if someone gives me a light, which I have already spent a lot and just thinking that it can be ...
Yesterday Hiba with the car and turned on the fault light, the car began to lose strength and block stopped accelerating, the light went out, but when it gave it again, it turned on again ... once thrown on the highway you can keep it 100 if there is no very strong slope but if you do not come to 60

... suggestions?

Take it to scan if it turns on the light, most likely is a sensor, that failure is typical in two things defective gasol

I have a diagnosis machine and I do not give me an error of any type of sensor, I thought that the same was the machine that did not read them, but I was disconnecting and checking and if I read them. I do not have a gasoline pump since it is a DTI, but I had thought about the diesel Let's see what I see ...

and as for the air, I had to start it, we gave him some accelerates, (which does not climb more than 1500rev approx) and no air leakage of any kind is appreciated. I will keep telling ...

I already happened to me and it was the MAP sensor of the Admission Multiple tries with this and/or the TPS

Hello: Have you tried that the fault is not the potentiometer of the accelerator pedal? It is very common for him to fail. It is under the brake pump, it is a black box.
The other probable cause can be the distribution. Perhaps the mobile tensioner does not tense enough, the engine is delayed, and does not "pull" what it should.
Luck!

Greetings from Córdoba, Argentina.