I just purchased a 1996 DEF 110 with a 300 TDi. After reading a lot on this forum in just one week I have removed the EGr valve. When everybody seems to see an increase of performance mine is opposite. I see no gain in power at all. I think now I have hard time goiing over 110 Km/h! The blanking plate has been put in place fine and the hose as well.
I plugged the vacuum hose properly with a tight fitted screw.



Is there something I missed ? Was I supposed to remove the EGR switch ?

you will only notice an improvement if it was faulty. If it wasn't faulty then you have prevented the loss of power you would experience when it did go faulty.

exactly what ratty said