The rusEFI uaEFI is an entry-level wire-in engine control unit (ECU) from rusEFI. It has 6 injector and 6 ignition outputs, support for up to 6 cylinders, 2 drive-by-wire throttle channels, 1 onboard wideband lambda input and knock control. List price is US$275. One seller lists it at US$325.
Prices checked . Specs from rusEFI's published data.


Key specs
DBW = drive-by-wire throttle channels · λ wideband = onboard wideband lambda (oxygen sensor) inputs · CAN = controller area network buses.
Features
- ✓Drive-by-wire
- ✓Onboard wideband
- ✓Knock control
- ✓Flex fuel
- ✓Traction control
- ✓Launch control
- ✓Boost control
- ✕Gearbox control
- ✓Onboard logging
- ✕Ethernet
- ✓USB
- ✕Built-in display
✓ published · ✕ not offered · ? not published. Some features, like traction control and launch control, mean different things by brand. See the glossary.
Details
- Highlights
- Open source, onboard LSU4.9 wideband, dual H-bridge (2 ETBs or e-wastegate)
- Software
- TunerStudio / rusEFI console, free (open source)
- Logging
- SD card
- Links
- Product page ↗
- Fits
- Honda OBD1 Civic / Integra / CRX / Del Sol
- Maker
- rusEFI: history, software and every model
Where to buy the uaEFI
1 sellers found
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Prices as shown on each seller's site on , in their own currency, converted at 14 Oct 2026 rates. Shipping, import duty and tax vary. Check with the seller before you buy.




