Emtron SL4
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Emtron SL4

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5.00 LBS
Calculated at Checkout

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Emtron’s SL4 is a wire in ECU with extreme flexibility. This ECU will support  4 Channels of fuel and 4 Channels fully sequential Ignition.  Every SL4 is housed in a durable billet Aluminum enclosure and includes up to 16Mb permanent memory for on board logging and oscilloscope function, DBW control, digital Knock control, Ethernet communications 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

Operating Temperature

  • ECU Internal Temperature
    • Max Operating Range: -30 to 110°C (-22 to 230°F)
    • Recommended Operating Range: -30 to 85°C (-22 to 185°F)


  • 6061 grade aluminum 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
    • 1 x 34 pin Key 1 Super Seal
    • 1 x 34 pin Key 2 Super Seal


  • Dual 100MHz Processors
  • 500Mb DDR RAM (0.5Gb)
  • 16MB ECU logging Memory
    • Over 700 channels available
    • 1Hz to 500Hz logging rate
  • 4 channel Oscilloscope function
    • Sampling at 500k samples/second
    • Includes Crank and Cam sensors inputs
    • Includes Digital Inputs 1-2
  • On-Board Barometric Pressure Sensor.
    • Range 40 – 115.0 kPa
  • 3-Axis Accelerometer
    • 16 Bit Resolution
    • +2g/+4g/+8g dynamically selectable full-scale
    • Output Data Rate 500Hz


4x Injector Outputs—High ohm.

  • 70V Clamping
  • Outputs can be used for ground switching , 6A Continuous , 10A Limit.
  • All Outputs are short circuit and over current protected

4x Ignition Outputs.

  • Adjustable TTL Ignition drive current ( 35mA or 70mA)
  • Outputs can be used for ground switching , 1A Continuous, 3A Limit
  • All Outputs are short circuit and over current protected

10 x Auxiliary Outputs

  • Variable Valve Timing, Drive by Wire, Boost control, Stepper motor and many more.
  • All Outputs have PWM Control, maximum frequency = 15 kHz
  • All Outputs are short circuit and over current protected
    • Low Side Drivers:
    • Auxiliary 1-4: Low Side 4A continuous, 6A peak modulated, 8A Limit
    • Auxiliary 5-8: Low Side 2.5A Continuous, 4A peak modulated , 5A Limit
    • High Side Drivers:
    • Auxiliary 1-8: High Side 4A Continuous, 9A Limit
    • Half Bridge Drivers
    • Auxiliary 9-10: Half Bridge 5A Continuous and 8A limit. Can be used as Low Side, High side or together for DC motor control (DBW)

1x Dedicated EFI Main Relay Output

  • Provides a relay ground. 100mA Limit

1x Analog Output

  • Voltage range 0 – 5.0V, Output current 100mA


10x Analog voltage/temperature Inputs

  • Fully configurable including custom calibrations
  • Switchable pull-up resistors on ANV 7-10.
  • Resolution is 1.22mV (12 Bit).

6x Digital/speed/Switched Inputs.

  • Frequency range from 0.0Hz up the 30kHz.
  • Wheel speed, VVT position and other frequency based signals.
  • On/Off switched inputs; air-con request, table control switching
  • Accepts a 0.0 – 20.0V analog input.
  • Switchable pull-up resistors on all 6 channels.

1x Knock Inputs with configurable Frequency and Gain.

  • Using Bosch, Digital Knock Integrated Circuit Technology
  • Selectable Frequency from 500Hz – 25kHz
  • Selectable Bandwidth from 100Hz – 5kHz

1x Dedicated Ignition Switch Input

  • 6.0 – 20.0V input used for EFI Relay Control.

Voltage Supplies

1x ECU Supply Input

  • 6V – 22.0V Range
  • Supplies ECU power
  • Supplies Aux 1-8 High Side Drivers

1x Auxiliary 9-10 Supply Input

  • Power Supply for Auxiliary Channels 9 -10. (See SL Series Power Distribution Wiring – A18.pdf for more information on how this should be wired)

1x 5.0V Supply Outputs

  • 5V Engine 250mA

1x 8.0V CAS Output

  • Output Current 400mA


  • 1x Ethernet 100Mbps
  • 1x CAN 2.0B 1Mbps/ 6 Channels per node

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Returns Policy
If you are not satisfied with any purchase made with Ace Performance, notify us within thirty-six (36) hours of receiving the package. Items may only be returned if they differ from what you ordered (ie. we shipped the wrong part to you) or you suspect there may be a defect with an item. Fitment issues (ie. you ordered the wrong part) are not a valid reason to return an item, and no refund requests due to fitment issues will be honored. To return an item incorrectly shipped to you, or that you believe to be defective, you must obtain a Return Merchandise Authorization Number (RMA #). The goods must be returned within ten (10) days in the same condition and in the original packaging. If the merchandise is damaged, or not in the original packaging, or no valid RMA # appears on the outside packaging, no refund will be forthcoming and you own the original purchase. The customer will be responsible for all shipping charges.

Electronic items are subject to engineering inspection prior to a refund being issued. All electronic items are carefully tested and inspected prior to sale. All items sold by Ace Performance are new unless otherwise specified.

If you believe a product you receive from Ace Performance has any defect, please contact us immediately. In the unlikely event that any issue should arise with your purchase, we are very motivated to locate and resolve the cause of the problem. If a manufacturing problem has occurred, we will investigate the part once it is returned to us, and then check with the manufacturer. If a defect is determined, the defective part will be replaced at no additional cost to you, or if you prefer, we will provide a full refund.

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