[Fat Charlie]

But there are other critical things like injectors and coils that can be cut off, not just the ECU.

Baltothewolf- I haven't looked it up, mainly because no OEM is going to explain how to make a kill switch. But the ECU looks for a lot of information and will shut down the engine if it isn't happy with what it sees. That's why I tested the fuse method, to see if it shut down well or shut down and threw a CEL. Opening that circuit made it lose spark, which shut my engine down with no CEL and I got a smooth bump start. Now when I get the time I'll put everything together sand start using it for real.