Problem on 96 750iL Help pls!!

[Stolichnaya]

Hello, a good friend of mine has a 1996 750iL and it has developed a problem. when runing at 50 or so mph and he accelerates its stutters a bit or hesitates. does not pull cleanly. He always uses good fuel and the car is in vgc. is this a known issue or has anyone had the same thing? Thanks for any suggestions.

[shogun]

Use the search on this board, there are E38 drivers only
http://www.bimmerboard.com/forums/e38/
Could be many things, for example bad speed sensor, fuel pump defective, fuel filter dirty, fuel regulators defective, CPS giving no clear signal etc.
That neesds a diagnosis at the dealer with the DIS, that is fastest to ceck.
Otherwise, go to my website below, and see under rough idle / now power.