Link Engine Management
Link G4X S15Link NS15X ECU
Link G4X S15Link NS15X ECU
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The Link G4X S15Link NS15X ECU is a direct-fit engine management system designed for Nissan SR20 engine platforms using the 64-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 engine applications using the 64-pin blue ECU header. Includes onboard 7 bar MAP sensor and electronic throttle control as standard. Please confirm your ECU connector matches the header shown in the product images before purchase.
Engine Control Capability
- Designed for SR20DET and SR20DE 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 7 bar MAP sensor
- E-throttle control included as standard
- 4-pin powered CAN connector
- USB tuning connection
- 512 MB onboard data logging
Vehicle Compatibility
- Nissan S13 Silvia / 180SX SR20DET (not CA18DET)
- Nissan S14a Silvia (facelift) SR20DET
- Nissan S15 Silvia SR20DET
- Nissan S15 Silvia SR20DE
- Nissan RNN14 Pulsar GTI-R SR20DET
- Nissan N15 Pulsar SR16VE
- 64-pin blue ECU header
- Manual transmission only
Note: For vehicles using the 76-pin ECU header, use the S13Link NS13X Plug-In ECU.
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
Onboard and expansion I/O are available as outlined below.
- Onboard MAP – Analogue Voltage 3
- E-Throttle Relay – Aux 12
Expansion Connections
- Expansion 1 – Signal ground
- Expansion 2 – +5V out
- Expansion 3 – Analogue Voltage 5
- Expansion 4 – Analogue Voltage 6
- Expansion 5 – Analogue Voltage 7
- Expansion 6 – Analogue Voltage 8
- Expansion 7 – Aux 9
- Expansion 8 – Aux 10
- Expansion 9 – Signal ground
- Expansion 10 – +5V out
- Expansion 11 – Aux 11
- Expansion 12 – DI6
- Expansion 13 – DI7
- Expansion 14 – Analogue Voltage 9
- Expansion 15 – Analogue Temperature 3
- Expansion 16 – Analogue Temperature 4
CAN note: This Plug-In uses a 4-pin powered CAN connector and cannot use the older CANPCB cable. Use the CANJST4 cable (Link PN 101-0198) for CAN devices.
Downloads and Resources
