When mine stopped working I took it apart and found this broken
Orders some 3.5 mm silver steel IIRC and made 2 new dowel pins.
Still working couple thousand k later
When I had it apart I unplugged the egr while I waiting on the steel bar, I don't think the car drove as smooth (when unplugged its closed all time like when blanked) so I'm not convinced blanking it is the best option. Apart from in euro 4 the EML comes on also