Hello guys.
I come here very rarely in the last 2 years, but i see all people has all same problems we (me and Fonserg from Russia) solved together more then 2 years ago about EGR and FAP in this thread.
So i reasumate this topic which is the DEFINITIVE and only one to fix finally problems about EGR and DPNR filter (or FAP as u would call it) in the IS220D.
My car ran more then 60000 Km very fast and clean with EGR closed (closed means in the sense which is explained in this thread) and without prekat+FAP.
Wish this thread will help. Just study it.
Wish u enjoy your Lexus.