ECU Shootout

rusEFI uaEFI ECU

EntryWire-in
US$275
rusEFI store: $275 bare PCB, $325 with orange enclosure, PRO (more memory, 2nd CAN) from $299Checked

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.

Pixel illustration of the rusEFI uaEFI
rusEFI uaEFI product photo
Photo: rusEFI · shop.rusefi.com ↗

Key specs

6INJECTORS
6IGNITION
6MAX CYL
2DBW
1λ WIDEBAND
1KNOCK
1CAN BUSES
✓LOGGING

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

LowestUS$325rusEFI Store · USA
TypicalUS$325median of 1 priced
HighestUS$325
In stock1 of 1as listed
rusEFI Store ↗
USUSA Maker in stock
USD 325base option; store states it is the only official seller (no distributors)

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.

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