Intro

Modern 32 bit chips are a game changer for Do-It-Yourself Engine Management

rusEFI is the next generation of open source, DIY automotive engine management. With the availability of cheap yet extremely powerful micro-controllers, we can make a very simple and powerful engine management system possible!

rusEFI is designed around the STM32 series, utilizing high performance floating point MCUs running a Real-Time Operating System. This ensures high performance and a very stable and dependable product.
The currently supported features are:

Feature	Supported
Batch injection
Sequential Injection up to 12 cylinders
Sequential Ignition up to 12 cylinders
Acceleration enrichment - wall wetting/fuel trip/tau factor
Closed Loop Fueling
Wasted Ignition
Electronic Throttle Body
Boost Control
Launch Control
Automatic Transmission Control
Direct Injection
Flat Shifting
Rotary Engines

microRusEFI

microRusEFI is a small & cheap Engine Management System board designed for fully sequential 1, 2, 3 and 4 cylinder applications.
microRusEFI uses a waterproof connector and its aluminum enclosure could be sealed.
microRusEfi supports dual Hall shaft position sensor input or 1xHall + 1xVR shaft position sensor input (A few resistors must be replaced on the PCB to switch from one setup to another)
Open-source design available in this repository, or available as a kit or completely assembled.
This is an excellent option for racing series that allow modifications inside the stock ECU case.

Features

• Primary VR or Hall input (configurable with few resistor changes)
• Secondary Hall input
• 4 analog thermistor (temperature) inputs
• 10 analog voltage inputs (0-5v)
• 4 high-Z injector outputs
• 2 high-current low side outputs for IAC/VVT/other solenoids
• Dedicated main relay control output
• 4 low-current low side outputs for relays or warning lights
• 4 5v logic-level ignition outputs
• 2 logic level outputs (5v/12v configurable, requires resistor changes)
• Electronic throttle body (drive by wire)
• CAN connectivity on the plug
• USB connectivity on the plug
• SPI and TTL available on PCB

Get microRusEFI hardware

Shop

The following rusEFI hardware is currently available on eBay: