Hello everyone, have a catalyst with weak performance. Must soon be to the TÜV with my Citroen. If the TÜV has that out during the examination, what happens then? May I continue to drive for a month and may in the time change the cat (old plate remains on)? Or, does the TÜV remove the old plaque, and thus forbids me to continue the journey. Due to my job my car and order + replacement of the cat in a workshop does not go after all within a few days. Thanks eu ch