Fuel Delivery System of 1980-1983 BMW 320i Wiring Diagram

Herein you will see a schematic about the fuel delivery system wiring diagram of the 1980-1983 BMW 320i. The wiring diagram is quite simple and easy to read, but please read and understand the schematic comprehensively before you jump and work on your vehicle’s wiring connections. The parts you will find in this wiring diagram is like: fuse, fuel pump relay, lambda relay, warm running regulator, auxiliary air valve, main fuel pump, and auxiliary fuel pump. Please note that fuel pump relay is activated when power is applied to it from the start/run bus, and that relay stays activated from pulses applied to it, and also that the relay deactivates 1-2 seconds after the pulses stop.

Fuel Delivery System of 1980-1983 BMW 320i Wiring Diagram