I'm helping a friend restore his 1973 240z so I figured I'd throw some data here for all to enjoy.

Reference Material:

FSM Electrical Chapter:1973 BE Body Electrical.pdf

Corrective Fuel System Upgrades: 1973 240z 1974 260z fuel system modifications.pdf

Electrical Wiring Diagram:

wiring diagram.zip

Edited April 3, 20159 yr by Blue

Engine Harness:

1973 Engine Wiring Harness.zip

Dash Harness:

1973 Wiring Harness Dash.zip

Edited April 3, 20159 yr by Blue

Back Harness:

1973 Wiring Harness Back.zip

Radio (Antenna & Speakers) Harness:

Edited April 3, 20159 yr by Blue

Fuel Pump Upgrade (Optional post-sale fix... not on all 73's):

Reference:1973 240z 1974 260z fuel system modifications.pdf