uaEFI (Ultra Affordable EFI)¶
The most fully-featured ECU in this price category; available at 💲rusEFI Store💲
🔴 Community support ONLY 🔴 Support Statement 🔴 Facebook group 🔴 Discord 🔴
uaEFI Release Software uaEFI Beta Snapshot Release vs Snapshot
uaEFI PRO Release Software uaEFI PRO Beta Snapshot
Specs¶
- ⏩ Interactive Pinout ⏪
- One of the eight universal units we offer
- Sequential six smart coils with option of on-board igniters
- Sequential six injector outputs for more complex engines
- Capable of driving 8 sequential injector outputs on simpler engines
- Four above 1A current low side outputs (six on new revisions)
- A couple of lower current low side outputs
- Two VRs: one MAX9924 one vr-discrete (Add R1 to switch MAX9924 into Hall mode)
- Three hall inputs
- Two DC motor drivers up to 6A. Can drive two ETBs or ETB + electronic wastegate or stepper idle
- On-board 4.9 LSU WBO controller
- On-board SD card
- Up to two CAN buses
- On-board digital baro sensor
- 9+2 analog inputs
- Flex fuel input
- Knock sensor input
- Proto area
- 100x100mm 4 layer PCB
- Expandable with on-board IGBT igniters
- Expandable with on-board MAP sensor (MPX4250AP or smaller)
- Expandable with on-board Bluetooth (JDY-33 would need to be soldered)
- Expandable with on-board EGT input (MAX31855 and related passives would need to be soldered)
- Expandable with second CAN bus (TJA1051T and related passives would need to be soldered)
- On-board real time cr1220 clock battery (software broken https://github.com/rusefi/rusefi/issues/4556)
- PRO comes with extra memory for Lua and more powerful stm32f7 MCU
Technical Details¶
uaEFI interactive BOM rev D uaEFI interactive BOM rev A
Harness Connectors¶
Molex Mini Fit Jr
- A 39012080 or 39012085
- B 39012180 or 39012185
- C 39012200 or 39012205
- D 39012160 or 39012165
- E 39012060 or 39012065
PCB headers¶
- A 5569-08A2 39300080 39301080
- B 5569-18A2 39301180
- C 5569-20A2 39301200
- D 5569-16A2 39301160
- E 5569-06A2 39301060
External USB connector¶
USBBF7
WBO Connector¶
Adapters¶
Want to make an adapter? See https://github.com/rusefi/uaefi-NA6-adapter
FAQ¶
Q: How do I order from Europe?
A: https://shop.rusefi.com is the only official store, there are no distributors for this ultra affordable unit.
Q: Can it do 8x8?
A: You would have to remove two flyback diodes to have 8 similar injector outputs. You would have to figure out a way to have 8 equal coil outputs, maybe settle on wasted spark?
Q: What's the difference between normal and PRO?
A: 97% of users should go with Normal. PRO can do much more complex Lua scripts.
Q: Do you have any dealer prices or discount for companies?
A: There is too little profit margin on these to offer discounts, sorry.
PCB files are available for free; you should be able to order your own. Paid consulting is available on how to set things up with JLCPCB if you need help.
Q: How do I use uaEFI with dumb coils?
A: See notes on the schematics, it has part numbers to add and reference numbers to remove!
Q: Would it run a v12?
A: It definitely would idle a v12; not sure if thermals would be a problem at higher RPM with two injectors per channel.
Q: How do I add Bluetooth?
A: See Bluetooth
Q: Where do I buy igniters?
A: See https://www.findchips.com/search/ISL9V3040D for stock at distributors.
Q: Can it control a stepper motor?
A: Yes, it's possible.
