Nissan R34 Skyline NEO Link Ecu G4X
Link ECU G4X Nissan RB NEO PlugIn ECU — NGTTX
Upgrade your Nissan Skyline, Laurel or Stagea with the Link ECU G4X NGTTX PlugIn ECU. This advanced standalone engine-management system installs inside the factory ECU enclosure and connects to the original wiring loom, giving you complete control over fuel, ignition, boost, variable cam timing and advanced motorsport functions.
Designed primarily for compatible RB NEO engines using the factory grey ECU connector, the NGTTX delivers modern engine management without requiring a complete standalone wiring harness.
FREE Link ECU USB Tuning Cable — $70 Value
Every NGTTX purchased from Kugan Tuning includes a compatible Link ECU USB tuning cable at no additional cost. Connect your laptop directly to the ECU for configuration, diagnostics, data logging and professional tuning.
Critical 4WD and Traction-Control Warning
Please review these limitations before ordering:
- The NGTTX does not currently output the factory 4WD signal required for proper operation of the original AWD system in four-wheel-drive Skylines and Stageas.
- Vehicles equipped with factory traction control will lose the original TCS function.
- The factory TCS and SLIP warning lights will remain illuminated in traction-control-equipped vehicles.
This ECU should not be purchased for a factory AWD application unless you have an approved alternative solution for controlling the four-wheel-drive system.
Why Choose the Link G4X NGTTX?
- Designed for compatible Nissan RB NEO applications
- Supports RB20DE NEO, RB25DE NEO and RB25DET NEO engines
- Designed for the factory grey ECU connector
- Installs inside the factory OEM ECU enclosure
- Connects to the original engine wiring loom
- No complete standalone wiring harness required
- Advanced fuel, ignition, boost and camshaft control
- Launch control, anti-lag and flat-shift capability
- Expandable inputs and outputs
- CAN communication
- 512 MB of onboard data-logging memory
- FREE Link ECU USB tuning cable included—a $70 value
- FREE Kugan Tuning remote setup support included—a $297 value
Suitable Applications
Nissan Skyline R34
- RB20DE NEO
- RB25DE NEO
- RB25DET NEO
Nissan Laurel C35
- RB20DE NEO
- RB25DE NEO
- RB25DET NEO
Nissan Stagea
- RB20DE NEO
- RB25DE NEO
- RB25DET NEO
- Certain non-NEO RB applications using the compatible grey ECU connector and pinout
Important Compatibility Information
- Compatible with manual-transmission vehicles only
- Requires a compatible factory grey ECU connector
- Compare your factory ECU connector and pinout with the product photos before ordering
- Compatibility depends on the factory ECU connector and pinout—not only the vehicle model or engine
- Factory four-wheel-drive control is not fully supported
- Factory traction control will not operate
- Electronic-throttle operation requires an ECU modification before it can be used
- Most other factory vehicle functions are supported, but availability can vary by model and configuration
- Modified vehicles and engine swaps may require additional wiring, sensors and configuration
- Professional installation and calibration are strongly recommended
G4X Engine-Management Features
- Up to 6D fuel and ignition mapping
- Sequential fuel injection
- Precision closed-loop camshaft control where applicable
- Digital triggering with support for OEM trigger patterns
- OEM idle-control hardware support
- 5D boost control with three switchable tables
- Boost control based on gear, vehicle speed or throttle position
- Launch control
- Anti-lag
- Flat-shift control
- QuickTune automated fuel tuning
- Individual-cylinder correction
- Gear-based fuel, ignition and boost compensation
- Real-time selectable fuel, ignition and boost maps
- Continuous onboard barometric correction
- Staged injection
- Knock control with configurable knock windows
- Hall-effect, variable-reluctance and optical trigger-sensor support
- CAN communication
- Onboard statistics recording
- 512 MB of onboard data-logging memory
I/O Expansion Options
Expansion Connector 1
- Sensor ground
- Low-current 5V sensor supply
- Digital input 7
- Digital input 8
- Analog voltage input 10
- Analog voltage input 9
- Ignition output 7
- Ignition output 8
Expansion Connector 2
- Sensor ground
- Low-current 5V sensor supply
- Digital input 5
- Digital input 6
- Analog voltage input 5
- Analog voltage input 6
- Temperature input 2
- Temperature input 3
Additional Input
- Factory ECU pin 108: Original OBD1 wire repurposed as temperature input 4 for an intake-air-temperature sensor
What’s Included
- Link ECU G4X Nissan NGTTX PlugIn ECU
- FREE Link ECU USB tuning cable—a $70 value
- FREE Kugan Tuning remote setup support—a $297 value
FREE Remote Setup Support — $297 Value
Purchase your Link ECU from Kugan Tuning and receive complimentary remote setup support to help prepare the ECU and vehicle for startup and professional tuning.
Remote setup support includes:
- Remote ECU connection and setup assistance
- Basemap selection guidance
- Initial ECU configuration assistance
- Startup configuration review
- Sensor and input verification
- Guidance preparing the vehicle for professional tuning
This support helps identify configuration and sensor problems early, reducing unnecessary troubleshooting and wasted dyno time.
Custom remote tuning and dyno tuning are not included unless separately purchased. Successful startup and vehicle operation depend on correct compatibility, installation, wiring, mechanical condition and ECU calibration.