If the symptoms are the same as well as the codes, I would first expect it to be the same cause. First, I would eliminate that it is a repeat of the same problem or some other problem generating the same results. It could be the same problem for the same or other reasons or something you did not do or did incorrectly associated with the fuel pump change. If you don't have the appropriate code reader yet, First, I would test fuel pressure as per Upallnight's suggestion. As an example, it could be something in the fuel that has been caused the fuel pump to lose pressure--perhaps clogged--then and now.

If the test you intend to do, is under no load or you tack it up slowly it may appear to act normally and throw no codes. I suggest doing both revving quickly and slowly and checking for codes in between and erase any that are there before the second test.

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X5 4.6 2002 Black Sap, Black interior. 2013 X5M Melbourne Red, Bamboo interior
Dallas