1999-2004 Honda S2000 Link Ecu G4X
Link ECU G4X Honda S2000 AP1 PlugIn ECU — S2000X
Upgrade your Honda S2000 AP1 with the Link ECU G4X S2000X PlugIn ECU. This advanced standalone engine-management system installs inside the factory ECU enclosure and connects to the original wiring loom, giving you complete tuning control without installing a universal harness.
Designed for cable-throttle Honda S2000 AP1 models, the S2000X provides precise control over fuel, ignition, VTEC, variable cam timing, data logging and advanced motorsport functions.
FREE Link ECU USB Tuning Cable — $70 Value
Every S2000X 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 S2000X?
- Designed for the Honda S2000 AP1
- Installs inside the factory OEM ECU enclosure
- Connects to the original engine wiring loom
- No complete standalone wiring harness required
- Supports most factory vehicle features
- Advanced VTEC and variable camshaft control
- 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
Suitable Application
- 1999–2004 Honda S2000 AP1 with a manual transmission and cable-operated throttle
Important Compatibility Information
- Compatible with manual-transmission vehicles only
- Does not support factory electronic-throttle Honda S2000 models
- 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
- Most factory vehicle features are supported, but support can vary by model and market
- Professional installation and calibration are strongly recommended
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. This 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 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
- 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
Eight-Pin Auxiliary Connector
- Pin 1: Signal ground
- Pin 2: 5V sensor supply
- Pin 3: Analog voltage input 10
- Pin 4: Analog voltage input 9
- Pin 5: Analog voltage input 8
- Pin 6: Analog voltage input 7
- Pin 7: Auxiliary output 10
- Pin 8: Auxiliary output 9
Expansion Connector 1
- Expansion 1: Signal ground
- Expansion 2: Auxiliary output 11
- Expansion 3: Auxiliary output 6
- Expansion 4: Digital input 11
- Expansion 5: Digital input 10
- Expansion 6: Digital input 9
- Expansion 7: Digital input 2
- Expansion 8: Digital input 1
Expansion Connector 2
- Expansion 9: Signal ground
- Expansion 10: Auxiliary output 16
- Expansion 11: Not connected
- Expansion 12: Not connected
- Expansion 13: Not connected
- Expansion 14: Not connected
- Expansion 15: Analog voltage input 12
- Expansion 16: Analog voltage input 6
What’s Included
- Link ECU G4X Honda S2000 AP1 S2000X PlugIn ECU
- FREE Link ECU USB tuning cable—a $70 value
- FREE remote setup support—a $297 value
FREE Remote Setup Support — $297 Value
Purchase your Link ECU from Kugan Tuning and receive remote setup support to help prepare the ECU for startup and professional tuning.
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 and sensor issues before road or dyno tuning, potentially saving troubleshooting time and avoiding preventable problems.
Custom remote tuning and dyno tuning are not included unless separately purchased. Successful startup and operation depend on proper installation, wiring, mechanical condition and ECU configuration.