Link G4X S13Link NS13X ECU

The Link G4X S13Link NS13X ECU is a direct-fit engine management system designed for Nissan S13 and early S14 platforms using the 76-pin blue ECU header. It installs into the factory ECU enclosure 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 SR20 and CA18 engine applications using the 76-pin blue ECU header. Includes onboard 4 bar or 7 bar MAP sensor. 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 SR20DET and CA18DET 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 S13 CA18DET
• Nissan 180SX CA18DET
• Nissan S14 pre-facelift SR20DET
• 76-pin blue ECU header
• 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
• DI7 – Digital input
• Analogue Voltage 6 (0–5V)
• Analogue Temperature 4
• Analogue Temperature 3

Expansion Connector 2

• Ign 5 – Ignition auxiliary output
• Ign 6 – Ignition auxiliary output
• Ign 7 – Ignition auxiliary output
• Ign 8 – Ignition auxiliary output
• Analogue Voltage 8 (0–5V)
• Analogue Voltage 9 (0–5V)
• Analogue Voltage 10 (0–5V)
• Analogue Voltage 11 (0–5V)

Downloads and Resources

• Installation Manual (PDF)

View all Link ECU Resources