Problem Xara Picasso 1.6 HDI Electro EGR Valve

A question, when fails, some light is turned on in the picture? When are you talking about a computer, do you mean diagnostic machine or a coding reader?. If you have a diagnostic machine that allows you to see values ​​in real time you should go out to try the car with it connected to see what turbo pressures and air flow measures have when it fails. But before, boorrale all the fault codes that have memorized, to see if any new is generated