Haltech Nexus plug-in ECU (Honda Civic EP3 01-06 / Integra 01-06 DC5 02-04 & K-swap)
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Haltech Nexus Honda EP3 / Integra DC5 Plug-in ECU.
The Haltech Nexus Plug-in ECU is a direct-fit engine management solution designed for the Honda Civic Type R EP3 and the Honda Integra / Acura RSX DC5. It plugs directly into the factory wiring harness and fits neatly into the OEM location, making installation clean and straightforward. This unit supports manual transmissions only, compatible with both 5-speed and 6-speed factory gearboxes.
The Nexus Plug-in ECU seamlessly supports vital OEM functions while unlocking advanced OEM Plus capabilities via an auxiliary connector, enabling modern features such as Drive-by-Wire throttle, O2 control, and flex fuel integration. For high-performance and racing applications, this unit unleashes potent race features including closed-loop boost control, a race timer, and advanced torque management, all easily configurable through the Nexus Software Programmer (NSP) or the Haltech Connect App on your smartphone.
Features and Software Functions:
- Direct Plug-and-Play: Connects directly to the factory Honda harness and fits perfectly in the original ECU location
- OEM Plus Functionality: Supports additional features like Drive-by-Wire throttle, O2 control, flex fuel compatibility, oil pressure monitoring, and fuel pressure sensing via the
- auxiliary connector
- Supported OEM Functions: Retains full control of the VTEC solenoid, VTC solenoid, IMRC (Dual Intake Runner System), coolant temperature display on the dash, battery
- warning light, air conditioning request signal, and serial communications with both the Multiplex Control Unit and the Immobilizer
- Advanced Race Features: Includes closed-loop CO2 boost control, race timer, advanced torque management, launch control, and nitrous control
- Easy Setup: Intuitive setup wizard via NSP software or the Haltech Connect App
- Modern Connectivity: Onboard Wi-Fi capability for wireless tuning and diagnostics on the go
- Diagnostics: Integrated 4-channel onboard oscilloscope for real-time signal analysis
- Data Logging: High-speed onboard data logging with 128MB of internal storage
- Closed-Loop Control: Features active knock control, long-term learning, and closed-loop O2 control
Specifications:
- Supported Applications: Honda EP3 (manual 5 or 6 speed) and Integra / Acura RSX DC5 (manual 5 or 6 speed)
- Wideband Controller: Onboard single-channel wideband controller supporting LSU 4.9 and NTK sensors
- Oscilloscope: Onboard 4 channels
- Data Logging Storage: 128MB
- Drive-by-Wire Support: Yes
- Wi-Fi Enabled: Yes
- Auxiliary Connector Outputs: 2 x Half Bridge outputs, 4 x Digital Pulsed outputs, 2 x 12V outputs, 2 x 5V outputs
- Auxiliary Connector Inputs: 4 x Synchronized Pulsed inputs, 1 x Onboard Wideband input, 2 x Sensor grounds
Kit Includes:
- (1) Haltech Nexus Plug-in ECU
- (1) Air temperature and wideband expansion harness (2.5m)
- (1) Air temperature sensor (1/8 inch NPT)
- (1) Aluminum bung for the air temperature sensor
- (1) Set of mounting brackets and hardware
- (1) Vacuum hose (2.5m) and T-piece
- (1) Haltech USB-C cable
- (1) Quick Start Guide
PLEASE NOTE: This system is originally designed to work with the specific chassis models like the EP3 and/or DC5,
but with the right engine harness, it is also usable for K-swap engines in other chassis like the EG/EK etc.
