Link G4X 300ZLink N300X ECU

The Link G4X 300ZLink N300X ECU is a direct-fit engine management system designed for Nissan Z32 300ZX models using the VG30 engine. It installs into the factory ECU location and connects directly to the OEM wiring loom on supported vehicles.

This ECU is intended for manual transmission vehicles only and supports most factory systems while providing advanced tuning capability through the G4X platform.

Important: Manual transmission only. Designed for VG30 engine applications. Includes onboard 4 bar or 7 bar MAP sensor. An intake air temperature (IAT) sensor is highly recommended. E-throttle requires modification before use. Please confirm your ECU connector matches the header shown in the product images before purchase.

Engine Control Capability

• Designed for VG30DE and VG30DETT engines
• Sequential fuel injection
• Digital triggering using OEM patterns
• Precision closed loop cam control
• Staged injection support
• Knock control with windowing

Hardware and Platform

• Direct plug-in installation using factory ECU enclosure
• Includes onboard 4 bar or 7 bar MAP sensor
• Continuous onboard barometric correction
• USB tuning connection
• 512 MB onboard data logging

Vehicle Compatibility

• Nissan 300ZX Z32 VG30DE
• Nissan 300ZX Z32 VG30DETT
• Manual transmission only

G4X Plug-In Key Features

• Up to 6D fuel and ignition mapping
• Sequential fuel delivery
• OEM idle control supported
• 5D boost control with three switchable tables
• Launch control, anti lag, and flat shift
• Individual cylinder fuel and ignition correction
• Gear-based fuel, ignition, and boost compensation
• QuickTune automated fuel tuning
• Selectable dual fuel, ignition, and boost maps
• CAN communication support

I/O Expansion

Expansion Connector 1

• GND – Sensor ground
• +5V Out – Low current +5V supply
• DI5 – Digital input
• DI6 – Digital input
• Analogue Voltage 8
• Analogue Voltage 7
• Temperature 3
• Temperature 4

Expansion Connector 2

• GND – Sensor ground
• +5V Out – Low current +5V supply
• Ign 7 – Ignition auxiliary output
• Ign 8 – Ignition auxiliary output
• DI7 – Digital input
• DI8 – Digital input
• Analogue Voltage 9 (0–5V)
• Analogue Voltage 10 (0–5V)

Downloads and Resources

• Installation Manual (PDF)

View all Link ECU Resources