Has anyone found a solution to code P0404 and loss of power?

Hyundai I30 CRDI - errorcode p0404 EGR-Valve Please help :) p0404 For most makes and models of vehicles, a trouble code P0404 is the result of an improper reading from your exhaust gas recirculation valve p0404 Code P0404 is triggered when the EGR position is not as the ECM expected and the most common cause is the EGR valve partly stuck open from carbon buildup on the

p0404 P0404 fault code This code refers to the EGR valve and its performance On the code reader it refers to 'A'control circuit Does anybody know