rusEfi is a GPL open source engine control unit for gasoline port injected internal combustion engines.

In order to use rusEfi you would need to acquire or fabricate one of the [supported boards](Hardware). You can also design you custom board if desired.

You can use rusEfi PC simulator to try rusEfi. PC simulator Windows binaries are included into [rusEfi Bundle](Download), Unix version of PC simulator could be compiled from [source code](https://github.com/rusefi/rusefi/tree/master/simulator).