The Tear Down.
Ripping out and updating all previous electrical components
When I owned a racecar.
This project highlights an engine control unit wiring harness update from a carbureted engine to a programmable fuel injection throttle body.
Getting Started.
During the inspection of the previously installed electrical system, I found all power to my onboard electronics, including the starter, to be unfused and supplied entirely through the car’s ignition switch. I determined this to be unsafe and unacceptable, so I rewired the entire electrical system.
Out with the old in with the new.
The old wiring harness lies on the bottom box, while the fuel injection kit sits on the table.
The finished product.
All new wiring has been installed and relocated. The electrical system has short circuit protection after installing the required fuses. The starter system is now isolated from all other electrical components and actuated by a switch and relay. The ignition switch provides only power to the engine control unit, which operates the fuel pump, throttle body, injection, and ignition system.