Quote Originally Posted by Rock Trol View Post
Hi RanGU. What year is your Trol? If its a Di then no hole is needed, the engine management system does not monitor this. If its a CRD then all you will get is an engine check light (Error 0401 from memory). The car does not go into limp mode. With a CRD you can buy a scangauge to view the code and clear it.
Yeah its mainly the late model vehicles that get this issue when blocking the egr. Most CRD's can get away with a full plate too. Its only when they run a Scan gauge they will see the issues. And I haven't heard of a Gutlux needing a hole in their EGR too. What engine we talking?