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Link G4X AtomX ECU
- G4X AtomX standalone ECU with four fuel and four ignition drives, designed as a compact entry-level engine-management solution with a focused I/O set.

Link G4X AtomX ECU
As Link's entry-level ECU, the AtomX delivers proven performance in a compact and capable package with exceptional value.
Sharing the same championship-winning G4X architecture as the rest of the G4X range, the AtomX delivers the same proven tuning experience and reliability trusted by enthusiasts and professional tuners worldwide.
The AtomX shares the same processor, firmware, software and standard G4X feature set found throughout the G4X range. Features include CAN Bus, Flex Fuel, Flexible Engine Protection Limiters, CAN Keypad Control, Open Loop Boost Control, a built-in Trigger Oscilloscope, OBDII output stream, continuous barometric correction, compatibility with aftermarket displays and 512MB of onboard data logging.
Designed for builds that do not require expanded I/O or advanced motorsport features, the AtomX provides all the essentials needed for reliable, high-performance engine management. It supports a wide range of tuning strategies, including VE and traditional fuel modelling, individual cylinder corrections, dual fuel and ignition maps, boost control and advanced engine protection strategies.
The AtomX is the ideal solution for builds requiring proven engine management performance and core G4X functionality in a compact and cost-effective package.
Models Supported |
The AtomX can control up to 2 rotors or 4 cylinders with sequential injection and direct spark. |
Features
The AtomX is an entry-level ECU offering all the core G4X features including:
ECU Features |
8 Custom Math Blocks with 30 characters Flex Fuel Trigger Oscilloscope Flexible Engine Protection Limiters CAN Keypad Control Open Loop Boost Control with up to three switchable tables On/off type cam control (VTEC style) Compatible with all leading after-market dashes via CAN or serial stream. 512 Megabytes of Internal Data Logging |
Motorsport Features |
Limited Gear Shift Control |
Specifications
The AtomX is the ideal solution for builds that do not require expanded I/O.
Outputs |
4 Injection Drives 4 Ignition Drives 4 Auxiliary Outputs +5V Sensor power supply Unused Inj/Ign can be used as a Auxiliary Outputs |
Inputs |
2 Digital Inputs 2 Temperature Inputs 3 Analogue Inputs 2 Trigger Inputs 1 Knock Input Unused Temperature and Analogue Inputs can be used as Digital Inputs |
Communications |
1 CAN Bus Channel Mini-B USB Tuning Connection |
Data Logging |
512MB Onboard Logging Memory 100kHz Maximum Total Logging Rate 250 Logging Channels |
Product Dimensions |
90mm(L) x 130mm(W) x 45mm(H) 3.54in(L) x 5.12in(W) x 1.77in(H) |
Product Weight |
180 grams (6.35 ounces) |
Material |
Glass-filled nylon enclosure |
Electrical |
Operating Voltage Range: 6.5-24V Maximum Input Voltage: 36V Maximum Continuous Current Draw: 3A Operating Current: 200mA |
Misc. |
Manufacturing Standard ISO 13485 Ambient temperature range: -30 to 90°C |
What's in the Box |
AtomX G4X ECU Quick Start Guide Mounting Bracket USB Tuning Cable LinkECU Stickers |
Connector |
Superseal 4 Row 34 Position Part number 4-1437290-0 |












