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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 x 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. Now featuring Knock Control.

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.

G4X AtomX

€ 795,00Prezzo
IVA esclusa
  • 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

    1 x Knock Input



    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



    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. 

  • Engine Configurations

    • 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)

    Fueling Adjustments

    • Up to 440 Zone Fuel Table with configurable load and RPM centers. Configurable X and Y Axis Parameters
    • Multiple Fuel Tables
    • Up to 6D Fuel Mapping (3D Fuel Table + #x3D Overlay trim tables
    • Injection Rate Control for Group Injection Modes
    • Master Enrichment for Traditional Fuel tuning
    • Pre-Crank Prime
    • First Crank Prime
    • Crank Enrichment
    • Post Start Enrichment
    • Warm Up Enrichment
    • Acceleration Enrichment
    • IAT Fuel Correction
    • Injector Deadtime Compensation
    • Injector Short Pulse Width Compensation
    • Injector Timing Control with Beginning / End Injection Definable
    • AFR Table Correction
    • Closed Loop Lambda
    • Individual Cylinder Fuel Trims
    • Overrun Fuel Cut
    • Idle Load Trims
    • Fuel Temperature Correction

    Ignition Adjustments

    • Up to 440 Zone Ignition Table with configurable load and RPM centers. Configurable X and Y Axis Parameters
    • Maximum Advance
    • Spark Duration
    • Dwell Time Table. Configurable X and Y Axis Parameters
    • Multiple Ignition Tables
    • Up to 6D Ignition Mapping (3D Ignition Table + 3x3D Overlay Trim Tables)
    • Individual Cylinder Ignition Trim
    • IAT Trim
    • Voltage Correction
    • ECT Trim
    • OEM Compatibility
    • CDI Compatibility


    • Engine Temperature Dependent Progressive Limiting
    • Vehicle Speed Limit
    • System Voltage Limit
    • User Configurable RPM Limits based on external input


    • Digital Trigger Decoding
    • Reluctor, Optical Proximity or Hall Sensors
    • Programmable filtering and arming thresholds
    • Configurable trigger patterns or preset triggering options.
    • Supports nearly all OEM trigger patterns and custom trigger arrangements

    Motor-Sport Features

    • Gear Shift Control (by digital inputs only)
    • Use the G4X Storm for more Motorsport Features


    • via mini USB

    Auxiliary Output Options

    • Each Output independently configurable
    • Unused ignition and Fuel outputs available as auxiliary outputs
    • General Purpose Outputs
    • General Purpose PWM Outputs
    • Fuel Pump Control
    • Fuel Pump Speed Control
    • Engine Fan Control
    • Air Con Clutch Control
    • Air Con Fan Control
    • Intercooler Spray Control
    • Tacho Control
    • Speedo Control
    • Check Engine Light
    • Purge Solenoid
    • Oxygen Sensor Heater
    • Switched Cam Solenoid Control
    • ECU Hold Power Control
    • Shift Light Control
    • Starter Control


    • 150 MHz Specialised Engine Management Microprocessor
    • Ignition control to 0.1 degree, fuel to 0.01 ms
    • 32 Bit Floating Point Calculation
    • 12 Bit ADC Resolution
    • 20000+ RPM
    • 4Gb Non Volatile Flash


    • 4 Saturated Injector Drives (suits high impedance injectors)
    • 4 Ignition Channels
    • 4 Auxiliary Outputs
    • 2 Digital Inputs
    • +5V Out
    • 2 Temperature Inputs
    • 3 0-5V Analog Inputs
    • 2 Trigger Inputs (Reluctor, Optical or Hall Sensors)
    • On Board Baro Correction (Real Time)

    Analog Inputs

    • Each channel independently configurable with preset or custom calibrations
    • Wide-band O2 (from external controller e.g. Innovate LC1)
    • Boost Adjust Signal
    • Configurable Fault Detection Settings
    • Throttle Position
    • Pressure (External MAP, BAP, general purpose, fuel, oil)
    • On Board Barometric Pressure Sensor
    • Air Flow Meter
    • Temperature (coolant, IAT, general purpose)
    • Gear Detection through Analog input, CAN or RPM/Speed Calculation

    Digital Inputs

    • Each channel independently configurable with pull-up resistors and active state control
    • All digital inputs capable of reading frequencies of up to 10kHz
    • Duty Cycle measuring on all digital inputs
    • Turbo speed
    • Ethanol Sensor Control
    • Wheel Speed Detection on all digital inputs with additional general purposed speed inputs
    • Anti-Theft control through digital inputs, over CAN or both

    Programmable Math Processing

    • Eight individually controllable math channels with up to four parameters in each
    • Math channels can be used as table axis’s and as digital or analog inputs

    Boost Control

    • Engine Temp Correction
    • IAT Correction
    • Multiple Boost Tables
    • External Adjustment
    • Open and Closed Loop Options

    Idle Control

    • Solenoid Control Only
    • Reliable and accurate user configurable Closed Loop Control
    • Air Con, Engine Fan, Power Steer, Drive Idle Ups
    • Idle Ignition Control


    • Internal Temperature Range -10 - 85oC
    • Ambient Temperature Range -30 - 90oC
    • Voltage 8 - 22V
    • Operating Current 200mA
    • Electrical protection on all inputs and outputs
    • Onboard Barometric Pressure Sensor


    • Length: 79 mm
    • Width: 126 mm
    • Height: 42 mm
    • Weight: 360 grams
    • Connector : 34 Pin Waterproof Automotive


    • Adjust ALL parameters in real time
    • Mouse or keyboard operation
    • Tuning
    • QuickTune - automated fuel self tuning
    • Logging Analysis
    • Diagnostic Information
    • Built In Help
    • Definable Screen Layouts
    • View over 300 possible runtime parameters

    Package Contents

    • G4X AtomX ECU
    • USB tuning cable
    • Mounting Bracket
    • Wiring and Installation Instructions
    • 2 large Link Stickers
    • 2 small Link Stickers

    Manufacturing Standard

    • ISO 13485

    Additional Accessories (purchased separately)


    • Terminal & Plug Kit (not recommended unless you have access to the correct AMP crimper
    • Intake Air Temperature Sensor
    • 3/8 NPT (Aluminium or Steel Mounting Bosses to suit)
    • 3 Channel Link Igniter
    • Throttle Position Sensor
    • 3 Channel Link Igniter
    • Wideband O2 Controller & Sensor
    • Injector Ballast Resistor Packs

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