I'm guessing you unplugged the battery when changing the fuel pump (or some other components). If so, you will need to allow the ECM to reset itself. Allow the car to idle for about 3 minutes, then drive at a constant highway speed for 20 minutes, followed by 20 minutes in stop and go city driving. This allows the ECM to reset it's parameters. Once you've done this, take your measurements again and see if there are any changes.
[This message has been edited by Neils88 (edited 06-24-2014).]