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Emtron’s SL4 is a wire in ECU with extreme flexibility. This ECU will support up to 4 Channels of fully sequential Fuel and Ignition.  Every unit is housed in a durable billet Aluminium enclosure and includes 32MB permanent memory for on-board logging, 4-channel oscilloscope function, DBW control, Knock control using digital filter technology, high speed Ethernet communications and 3-axis G-force sensing to name a few.


Power Supply

  • Operating Voltage: 6.0 to 22.0 Volts DC (ECU shutdowns at 24.0V)
  • Operating Current: 290mA at 14.0V (excluding sensor and load currents)
  • Reverse Battery Protection via External Fuse
  • “Smart” battery transient protection

Operating Temperature

  • Max operating range: -30 to 110°C (-22 to 230°F)
  • Recommended operating range: -30 to 85°C (-22 to 185°F)


  • Aluminium 6061 grade CNC billet enclosure
  • Enclosure size 120 mm x 130 mm x 27 mm
  • Weight: 470g
  • Connector system: 68-way Super Seal waterproof connectors with gold plated contacts
  • Pin diameter: 1 mm
  • Current rating: maximum 15A per pin (wire gauge dependant)
  • Connector A: 34 pin Key 2 Super Seal
  • Connector B: 34 pin Key 1 Super Seal


  • Dual 100MHz processors
  • 500Mb DDR RAM (0.5Gb)
  • 32MB ECU logging memory.  Over 1200 channels available, 1Hz to 500Hz logging rate
  • Oscilloscope 4-channel function with 32MB storage
    • Sampling at 100k samples/second
    • Includes Crank Index and Sync sensor inputs
    • Includes Digital Inputs 1-4
  • On-Board barometric pressure sensor. Range 40 – 115.0 kPa
  • 3-Axis accelerometer. 16-Bit resolution,  +2g/+4g/+8g dynamically selectable full-scale