uaEFI - Universal Standalone ECU for 6 Cylinder Engines
The uaEFI is a powerful universal standalone ECU designed to fully control up to 6-cylinder engines with sequential injection and ignition. Built for performance, flexibility, and advanced engine management, uaEFI is ideal for turbo, naturally aspirated, race, or custom engine projects.
With extensive I/O, on-board wideband control, drive-by-wire capability, and multiple trigger input options, uaEFI is ready to run anything from classic engines to modern electronically controlled setups.
Key Features
Sequential Engine Control
- Sequential injection for 6 injectors
Suitable for high impedance injectors. -
Sequential ignition for 6 smart coils
Optional on-board igniters available
High-Current & Auxiliary Outputs
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6 low-side outputs (>1A each) for solenoids, valves, relays, etc.
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2 DC motor drivers (up to 6A each)
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Dual Electronic Throttle Bodies (ETB)
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ETB + electronic wastegate
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Stepper idle control
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Advanced Sensor Inputs
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2 VR conditioners
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1× MAX9924
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1× discrete VR circuit
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3 Hall sensor inputs
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11 analog inputs
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Flex fuel (ethanol content) input
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Knock sensor input
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On-board digital barometric pressure sensor
Integrated Wideband & Logging
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On-board LSU 4.9 wideband controller
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On-board SD card slot for data logging
Expandability Options
The uaEFI is designed to grow with your project:
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On-board IGBT ignition drivers (for direct dumb coil control)
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On-board MAP sensor support
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MPX4250AP
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MPXH6400AC or smaller
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On-board EGT input
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MAX31855 (and related passives require soldering)
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Second CAN bus
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TJA1051T (and related passives require soldering)
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Why Choose uaEFI?
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Sequential control for ignition and injection
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Supports modern and classic trigger systems (VR & Hall)
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Built-in wideband controller - no external module required
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Drive-by-wire ready
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Highly expandable hardware
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Ideal for custom, race, turbo, or swap builds