When rebuilding a car or motorcycle, or wiring a race car, it is often easier to rip out the old wiring and redo all of it. Today I will show you how to plan it out and do it with the correct connectors, wires, and tools. It’s easier than it sounds and cheaper than you might think.

The Labelmaker and heat shrink I use:

I may get a commission if you use the above links

All the part numbers and links you need:

Video on ECU wiring (specifically the Megasquirt):

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  1. Madmouse

    Rewire any german car you can rewire the fookin planet

  2. Graham's Number

    Just considering to rewire a vehicle is daunting enough – thank you for breaking down the process with some great tips

  3. rover215

    I want to rewire my entire car (1965 Mercedes 220sb); the original wiring is brittle, frayed, etc. I want to modernize and simplify it and have seen many vids abt converting to a PDM/CAN. Wondering why you chose to go with a fused system using relays and part PDM. I know almost nothing abt wiring and electronics, so maybe there's an obvious reason. Looking forward to the next Viper update!

  4. crsmit

    this is verry quickly becoming a pick 2 problam. you can have it lazy and cheep but you wont get quality. you can have lazy and quality but it wont be cheep. you can have it quality and cheep but you wont get lazy.

  5. relmdrifter

    Good stuff. Thanks for the google sheet!

  6. Sum Ma

    That was the simplest explanation I've ever heard and I'm so lost!

  7. bigdatapimp

    9:20 that is a tweaker torch. A crack lighter is when you take a cheap lighter and turn the flame up extra high…😂

  8. Dirty Sink

    So if the circuits are completely separate why does my engine die when I unplug my taillights

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