Hello, in the 20th DTH, which becomes more or less, (from the Vectra DTI) it is not easy to cancel it, because the electrovalve that regulates it, seems to notice a lack of emptiness or something, the case is that I do not know why, it always gives failure to be disconnected the EGR cap, there they say some that are done by means of a modification of the switch Encuarrine the admission, manage to plug the collector's hole and use an old EGR with nothing more than the vasto, without the cup, but to see how the admission tapas without having the risk of swallowing the valves and ..., this is already the imagination of each one,
and assess. luck