2007 silverado 1500 5.3L has code P2635 after fuel pump replacement

[Gmguy2466]

Recently my 2007 silverado 1500 with a 5.3L engine stalled. Engine would not start again. Thought it was the fuel pump so I replaced it and same problem, would not start. Replaced the fuel control module next and truck now starts and runs fine. I am however now getting a P2635 code after start up. Try to reset the code but just comes back again. Tested my fuel pressure with a gauge and reads 59 psi at idle and up to 75 psi during start. Had to have the new fuel control module programmed to work in my truck. Not sure what is wrong. Is it possible for the new fuel control module to take a little time to adjust the expected and actual fuel pressure and turn of the code P2635?

 

Any help would be appreciated.

[bubbanbrenda]

Yes fuel pump control module must be programmed to your truck.