The theme is a 1.8 Evolution Corsa

The second speed, the air conditioning fan produced noise, the strap produces acute noise, does not cool inside the vehicle, ........ compressor? tapoamiento or obstruction of ducts or radiator, fan? An orientation thanks

Well, the second speed of the fans work thus with the A/C the first one enters 200-250 PSI, the second to about 300 psi, obviously a manometer to have these readings, by means of the engine heating the first one will slightly activate slightly above the half of the temperature meter you have in the instrument panel, the second from 3/4 of temperature
up. Well, you comment that the A/C does not cool if there is obstruction in the A/C system is normal for the second to be the pressure in the system, now if the second is direct without connecting the A/C checks the temperature meter if it is in half or less two probable causes the temperature sensor does not serve or the feeding of the sensor of 5V does not arrive or is broken the cable or circuit. Wing information that you gave us I hope to have been helpful: Woohoo:

Excellent answer I completely agree, now keep in mind that an obstruction of the system can also affect you.