Nissan S13 S14 S15 SR20DE-SR20DET Link ECU G4X
Link ECU G4X Nissan SR20 PlugIn ECU — NS15X
Upgrade your Nissan SR20-powered vehicle with the Link ECU G4X NS15X PlugIn ECU. This advanced standalone engine-management system fits inside the factory ECU enclosure and connects to the original wiring loom, giving you complete tuning control without installing a universal harness.
Designed for Nissan SR20 applications equipped with the 64-pin blue ECU connector, the NS15X controls fuel, ignition, boost, electronic throttle, data logging and advanced motorsport functions.
FREE Link ECU USB Tuning Cable — $70 Value
Every NS15X 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 setup, diagnostics, data logging and professional tuning.
Why Choose the Link G4X NS15X?
- Designed for Nissan SR20 engines with the 64-pin blue ECU connector
- Installs inside the factory OEM ECU enclosure
- Connects to the original engine wiring loom
- No complete standalone harness required
- Onboard 7-bar MAP sensor
- Electronic throttle control included as standard
- Supports most factory vehicle functions
- Four-pin powered CAN connection
- 512 MB of onboard data-logging memory
- Expandable inputs and outputs
- FREE Link ECU USB tuning cable included—a $70 value
- FREE remote setup support included—a $297 value
Important Compatibility Information
- Compatible with manual-transmission vehicles only
- Requires the 64-pin blue ECU connector
- Compare your ECU connector with the connector shown in the product photos before ordering
- Vehicles with the 76-pin ECU connector require the Link ECU S13X PlugIn ECU
- This ECU is not designed for S13 models equipped with the CA18DET
- Professional installation and calibration are strongly recommended
Suitable Applications
- Nissan S13 Silvia SR20DET
- Nissan 180SX SR20DET
- Nissan S14a Silvia facelift SR20DET
- Nissan S15 Silvia SR20DET
- Nissan S15 Silvia SR20DE
- Nissan RNN14 Pulsar GTI-R SR20DET
- Nissan N15 Pulsar SR16VE
- Nissan N14 with distributor ignition
Powered CAN Connection
This PlugIn ECU uses Link ECU’s newer four-pin powered CAN connector and cannot use the older CANPCB cable.
Use the Link ECU CANJST4 cable, part number 101-0198, to connect compatible CAN devices. The connection provides:
- CAN communication
- Protected 12-volt power supply
- Ground connection
- Self-resetting fuse rated for 3 amps of continuous current
The CANJST4 cable is sold separately unless specifically selected or included with your order.
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
- OEM idle-control hardware support
- 5D boost control with three switchable tables
- Boost control based on gear, vehicle speed or 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
- Electronic throttle control
- 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
Onboard Functions
- Onboard MAP sensor: Analog voltage input 3
- Electronic throttle relay: Auxiliary output 12
Expansion Connections
- Expansion 1: Signal ground
- Expansion 2: 5V sensor supply
- Expansion 3: Analog voltage input 5
- Expansion 4: Analog voltage input 6
- Expansion 5: Analog voltage input 7
- Expansion 6: Analog voltage input 8
- Expansion 7: Auxiliary output 9
- Expansion 8: Auxiliary output 10
- Expansion 9: Signal ground
- Expansion 10: 5V sensor supply
- Expansion 11: Auxiliary output 11
- Expansion 12: Digital input 6
- Expansion 13: Digital input 7
- Expansion 14: Analog voltage input 9
- Expansion 15: Temperature input 3
- Expansion 16: Temperature input 4
What’s Included
- Link ECU G4X NS15X PlugIn ECU
- Onboard 7-bar MAP sensor
- Electronic throttle control
- FREE Link ECU USB tuning cable—a $70 value
- FREE remote setup support—a $297 value
FREE Remote Setup Support — $297 Value
When you purchase your Link ECU from Kugan Tuning, you also receive remote setup support to help you prepare the ECU for a safe and efficient startup.
Support includes:
- Remote ECU connection and setup assistance
- Basemap selection guidance
- Startup configuration review
- Sensor and input verification
- Professional setup support
This service helps identify configuration or sensor issues before dyno or road tuning, potentially saving you time and avoiding preventable troubleshooting.
Custom remote tuning and dyno tuning are not included unless separately purchased. Successful startup and operation depend on proper wiring, installation, engine condition and ECU configuration.