The E-24 connector is not in the harness you have, It's in the rear harness, and is connected to the fuel pump via the B-34 (single wire in double wire connector). The control relay is referred to in the manual as the ECI control relay. The wire you want to splice to is 2-BW, a fat black wire with a white stripe that comes out of the B-30 connector at the control relay. I ran 8ga from there to the fuel pump, and grounded the fuel pump to the frame. The B-30 connector is a rect. 8 wire connector, with B, R, BR, BW (your wire), L (blue), BY, another B, and WR coming out of it. It should be within 12" of the main ecu connection on the harness.

For further info, the E-24 is a round weatherproof connector - BY is +, skinnier B is ground.