BMW E46 Race Car Build: Electrical & Wiring

I get the rat's nest of a wiring harness thinned out and reinstalled, along with a new power distribution system. The car cranks over with a juicy spark at the plugs! All it needs is fuel and it should run.


I also reflash the ECU to bypass the immbolizer (EWS) so the car will start, since I ripped out the immobilizer long ago. I figured it'd be easier than dealing with security issues down the road.


There's still the fuel system and shifter that need to be done before the car can drive. Then, I still need to figure out electrical systems for the wipers, lights, and some other small things before the wiring can be considered finished.


I have a background in electrical & computer engineering, as well as experience designing the electrical systems on an FSAE race car, so this sort of stuff doesn't make me sweat too much.


The next part will be the fuel system, which is the last thing before starting the car. Then the shifter (which you may have spotted in the video already- I usually am working on multiple things at once) can get installed. Slap some body panels on, get a steering wheel and seat, do the whole braking system... still a ways to go before it drives.