1987-1992 Mitsubishi Galant VR4 Link Ecu G4X
Link ECU G4X Mitsubishi Galant VR-4 & 1G DSM PlugIn ECU — VR4X (223-4000)
Upgrade your Mitsubishi Galant VR-4 or 1G DSM with the Link ECU G4X VR4X 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 and advanced motorsport functions without installing a universal harness.
Designed for compatible turbocharged 4G63T applications, the VR4X is suitable for street, drag-racing and high-performance builds.
FREE Link ECU USB Tuning Cable — $70 Value
Every VR4X ECU 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.
Why Choose the Link G4X VR4X?
- Designed for compatible Mitsubishi 4G63T applications
- Installs inside the factory OEM ECU enclosure
- Connects to the original engine wiring loom
- No complete standalone wiring harness required
- Choice of onboard 4-bar or 7-bar MAP sensor
- Advanced fuel, ignition and boost 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
- 1987–1992 Mitsubishi Galant VR-4 E38A with a turbocharged 4G63T engine
- 1987–1992 Mitsubishi Galant VR-4 E39A with a turbocharged 4G63T engine
- Compatible first-generation DSM vehicles with a turbocharged 4G63T engine
Important Compatibility Information
- Compatible with manual-transmission vehicles only
- Compare your factory ECU connector with the connector shown in the product photos before ordering
- Compatibility depends on the vehicle’s ECU connector and pinout—not only its model year and engine
- Select the appropriate onboard 4-bar or 7-bar MAP sensor when ordering
- Knock control is not available on this ECU
- Most factory vehicle functions are supported, but availability can vary by model and application
- Electronic-throttle operation requires an ECU modification before it can be used
- Some vehicles or engine combinations may require additional wiring and configuration
- Professional installation and calibration are strongly recommended
G4X Engine-Management Features
- Up to 6D fuel and ignition mapping
- Sequential fuel injection
- Digital triggering with support for OEM trigger patterns
- Precision closed-loop camshaft control where applicable
- 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 fuel and ignition correction
- Gear-based fuel, ignition and boost compensation
- Real-time selectable fuel, ignition and boost maps
- Continuous onboard barometric correction
- Staged injection
- Hall-effect, variable-reluctance and optical trigger-sensor support
- CAN communication
- Onboard statistics recording
- 512 MB of onboard data-logging memory
Important: Although knock control is available on some G4X ECUs, it is not available on the VR4X.
I/O Expansion Options
Expansion Connector 1
- Sensor ground
- Low-current 5V sensor supply
- Digital input 6
- Analog voltage input 5
- Analog voltage input 6
- Temperature input 3
Expansion Connector 2
- Sensor ground
- Low-current 5V sensor supply
- Auxiliary output 9—reserved for electronic throttle and unavailable as a general-purpose auxiliary output
- Auxiliary output 10
- Analog voltage input 6
- Analog voltage input 7
- Analog voltage input 9
- Analog voltage input 10
What’s Included
- Link ECU G4X VR4X PlugIn ECU
- Selected onboard 4-bar or 7-bar MAP sensor
- 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 installation, wiring, mechanical condition and ECU calibration.