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Link ECU - G4X AtomX ECU

SKU 111-4000
Original price $1,314.50 - Original price $1,314.50
Original price
$1,314.50 - $1,314.50
Current price $1,314.50


Small, but mighty! 

The Link G4X AtomX ECU is the latest version of our entry-level ECU. Don't let its size fool you however, the AtomX has expanded data logging and uses the same microcontroller as the entire G4X range! It is more responsive and has higher bandwidth than its G4+ Atom II predecessor. 

G4X features 512 megabytes of logging at 32bit using up to 250 channels, each limited to up to 1kHz per channel (by the Operating System), with a maximum of 100 kSamples/sec.

G4X features 8 times faster communications speed, allowing you to download logs 8 x faster and pushes all the logging quickly up to a new and improved PCLink available for download below in the features tab. 

The AtomX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark. or, it can be used for up to eight cylinders using batch fire. 

This makes it ideal for naturally aspirated engines that just need a re-tune and don't need all the extra sensors and features that come with our higher level ECUs. 

Requires "A" loom.

The AtomX is ideal for: 
  • 1-12 Cylinder Distributed.
  • 2-8 Cylinder Wasted Spark.
  • 1-4 Cylinder Direct Spark.
  • Odd Fire Engines.
  • 2-Stroke Engines.
  • Configurable Firing Order.
  • Configurable TDC Points (for odd fire).



  • 2 x Digital inputs.
  • 2 x Temperature inputs.
  • 3 x Analog inputs.
  • 2 x Trigger inputs.


  • 4 x Injector drives.
  • 4 x Ignition drivers.
  • 4 x Auxiliary outputs^.
  • +5V Sensor power supply.
  • ^unused ignition drives can be used as additional Aux.
  • Outputs.


  • 1x CAN bus.
  • 1x USB tuning connection.
  • 1 x thirty-four pin, waterproof connector.
  • Upgraded Communications Chip.


  • Comes loaded with all of Link ECU's standard features.
  • 512MB of logging memory.
  • 20 general purpose tables.
  • Runs on PC Link software for G4X.


  • Dimensions: 90mmL x 130mmW x 45mmH (without loom).
  • Weight: 180 grams.

What's in the box:

The AtomX ECU is supplied with a USB tuning cable, mounting bracket and four Link ECU stickers. 

Download the AtomX Quickstart Guide 

Download G4X PC Link Tuning software

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Unit 4, 82 Vanity Street, Toowoomba QLD, 4350, Australia.

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