Welcome to the addiction! Sounds like you are on the right track.
No. 1 best and most important Mod if it has not already been done is to either block off the EGR feed or totally remove the entire EGR system completely using a kit that is still available on eBay. Complete removal is best!
https://www.ebay.com/itm/EGR-FCV-Delete ... Sw-89ZSw6thttps://www.ebay.com/itm/Fire-Engine-Re ... SwPx5diS5PNo. 2 best Mod is adding an in-tank fuel pump. Prevents all air in-leakage to fuel system forever and will actually make engine run a little smoother. There are several other advantages as well.
viewtopic.php?p=264760#p264760http://www.auerbach.ca/kj/lift_pump/If you have not read and studied the NOOB Guide, please do so, it has a wealth of information for new CRD (and sometimes old ones) owners.
viewtopic.php?f=5&t=54207PS: You may want to read through it several times....
Happy Wheeling
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount98 Dodge Cummins 24 Valve