Hi, guys I've been having a problem with my car the last few days mainly lack of power below 2500rpm until turbo comes in and especially short of power when cold. From what I have read looks like the common symptoms of the EGR fault. I have cleaned the EGR but to no avail. I have now managed to get a fault code out of it with the pedal test of 04005A, I have done a search for this code but can't find it, can anyone confirm that this relates to the EGR valve. Thanks.