I don't know if this ? the right section, and even if the kind of question ? that is relevant to the forum? we feel the same.

I have a panda cross 4x4 2005 75hp, which practically has lost performance and after having made a lot of tests don't I come to****. I have changed mass air flow sensor, egr, turbo pressure sensor, removed the catalyst and I can't remember + what, but unfortunately it does not wake up from the torpor in which ? fall.

It comes naturally to me at this point indict the control unit, which of course does not detect any error in diagnosis, but it may be that you have sputtanato some value in the flash and the car does not work properly??