If you are using TLAD to run LCPDFR don't!  I was using it and was getting all of the crashing and errors everyone was talking about.  I then loaded TBoGT and ran LCPDFR on that with a fresh save post LCPDFR install and I have not suffered a single problem since.  I don't know if it is TLAD or the save from a previous install of EFLC.  I would recommend to anyone having issues to not use any former saves from previous GTAIV or EFLC installs and instead do the intro mission and make a fresh save.  Finally if you are using TLAD and still having issues, switch to TBoGT.  Hope this helps anyone having issues.  I gotta back to the game!

I'm using GTA IV, TLAD and TBoGT and I have no issues with either games. I've noticed that savegames are often the culprit to crashes, so that is good advice. 

Yes.  I am unable to recreate the success I had in my first game where I did NOT load a save.  I am now experiencing all the crashes again.  I'm going to try and replay the introduction mission instead of loading a save to see if that recreates the proper working LCPDFR.

Nope.  Unable to make it work now.  Darn.  I thought I was on to something.

It's always different from person to person, and from time to time :)