the egr valve is smart if I'm not mistaken, and composed of a potentiometer for position, surely the problem will be to them if I put the plate of the gas does not pass, but the result of the illuminated light always remains!then the only solution and or replace it, or exclude it from the ecu thing that I personally can't!even those few contacts that or I year given a negative response!
tomorrow will contact the customer to see if I can leave too little time to read it,even though I doubt it because it works anyway you upgrade!!