This vehicle came in with mil lght on, code stored P0487 EGR Position sensor circuit micro breaks-current, new EGR fitted,mil stayed off on 10 mile road test but then returned when engine was restarted.Have checked wiring as far as possible with out stripping out to much.Just wondered if anyone has any advise or knows if the EGR should be coded to the ECU before I spend time on an in depth examination of the wiring. Thanks Dave.