Link G4X AtomX ECU Compact Yet Powerful The Link G4X AtomX ECU is the latest version of Link’s entry-level engine control unit, offering improved responsiveness and expanded data logging. Despite its small size, it utilizes the same high-performance microcontroller as the entire G4X range, delivering enhanced speed and bandwidth compared to the G4+ Atom II. Key Features Advanced Data Logging – 512MB of 32-bit logging, supporting up to 250 channels at a maximum of 100 kSamples/sec. Fast Communication – 8x faster communication speeds allow for quicker log downloads via a mini USB connection. Engine Compatibility – Supports up to 2 rotors or 4 cylinders with sequential injection and direct spark, or up to 8 cylinders in batch fire mode. Knock Control – Now included to enhance tuning and engine safety. Ideal for Tuned NA Engines – Designed for naturally aspirated setups needing tuning without additional sensors and features of higher-tier ECUs. Engine Configurations 1-12 Cylinder Distributed 2-8 Cylinder Wasted Spark 1-4 Cylinder Direct Spark Odd Fire & 2-Stroke Engines Configurable Firing Order & TDC Points Fueling Adjustments Up to 440-zone fuel table with configurable load and RPM centers 6D Fuel Mapping (3D table + overlay trim tables) Injector deadtime compensation and short pulse width adjustments Closed-loop lambda control Individual cylinder fuel trims Various enrichment options (crank, post-start, warm-up, acceleration) Ignition Adjustments Up to 440-zone ignition table with configurable load and RPM centers 6D Ignition Mapping (3D table + overlay trim tables) Individual cylinder ignition trims Dwell time and spark duration control Voltage and engine temperature correction Motorsport & Control Features Gear Shift Control (digital input) Engine speed and voltage limiting Vehicle speed limit Boost control with temperature correction and multiple boost tables Idle control with closed-loop and solenoid control options Auxiliary output controls for fans, fuel pumps, shift lights, air conditioning, and more Processing & Hardware 150 MHz specialized engine management microprocessor 32-bit floating point calculations 12-bit ADC resolution Supports up to 20,000+ RPM 4GB non-volatile flash memory Inputs & Outputs 4 injector drives (suitable for high-impedance injectors) 4 ignition channels 4 auxiliary outputs 2 digital inputs 3 analog inputs (0-5V) 2 temperature inputs Onboard barometric correction sensor Supports various sensors including wideband O2, MAP, IAT, coolant temp, and more PCLink Software Full real-time tuning capability Automated fuel tuning with QuickTune Logging analysis and diagnostic tools Adjustable screen layouts with access to 300+ runtime parameters Physical & Environmental Specifications Dimensions: 79mm x 126mm x 42mm Weight: 360g 34-pin waterproof automotive connector Operating voltage: 8-22V Internal temperature range: -10°C to 85°C Electrical protection on all inputs and outputs Package Contents G4X AtomX ECU USB tuning cable Mounting bracket Wiring and installation instructions Link stickers (2 large, 2 small) Additional Accessories (Sold Separately) Wiring looms Intake air temperature sensor Wideband O2 controller and sensor 3-channel Link igniter Throttle position sensor Injector ballast resistor packs Requires an "A" loom for installation.
