2000-2001 Integra ECU's use ECU pin A15 for the fuel pump output wire.
1999-2000 Civic ECU's use ECU pin A16 for the fuel pump output wire.If you intend to use a '00-'01 Integra ECU in a '99-'00 Civic (ie: if you have installed an Integra engine in your 99-00 Civic), you will need to move the wire from pin A16 to pin A15.
Please note that '00-'01 Integra OBD2B ECU's also have an immobilizer. In addition to the above wiring change, you will need to have the immobilizer bypassed. See our Immobilizer Bypass Service