Engine management light has not been blanked off. Its only been owned by A.the dealer B. the first owner, C. the second owner (ME) and you. EGR was blanked by me personally ,engine management light has never come on because of a fault. It should not come on, on this model if you blank the EGR. Only the later engines have ECUs that are unhappy about blanking EGR. This is a T reg, compared to some of the people on here, you are driving a very old car, you are looking for faults that are not there. If the MAF gets a bit dirty, the Management light doesn,t come on, even if the vanes got a bit sooty, I don,t think this management light would come on. I shouldn,t think its software is anything as sensitive as on later or (PD) cars. There must be a Vagcom way of testing the light.???