NEW!!!! - Nexus Plug-in ECU - Honda EP3 (01-05) DC5 (02-04)

The Nexus Honda EP3 plug-in brings advanced control and wireless connectivity to your Honda Civic EP3.

Supported Models

Honda Civic EP3 (01-05) - Manual Transmission
Honda Integra DC5 - Manual Transmission
K-swaps with original K20 Harness Plugs

Effortless Setup

Get up and running quickly using the intuitive Nexus Set-up Wizard.

Wireless Control

Connects directly via Bluetooth to the Haltech Connect App for easy adjustments and monitoring.

Future Proof

Expand your functionality easily with the optional expansion harness and CAN devices.

Simple Install

Supplied with a mounting bracket for easy fitment in the factory ECU location.

This Nexus Plug-in ECU is compatible with the following vehicles:

• Honda Civic EP3 (01-05), manual transmission only
• Honda Integra / Acura RSX DC5 (02-04), manual transmission only 

Nexus Plug-in ECU includes

• Nexus Honda EP3 Plug-in ECU
• Air temperature + wideband expansion harness 2.5m (8') (HT-189000)
• Air temp sensor (1/8” NPT) (HT-010206)
• Aluminum weld on fitting 1/8 NPT-27 TPI for air temp sensor
• Mounting brackets and hardware
• 2.5m vacuum hose and T-piece
• Haltech USB-C cable
• Quick start guide 

Supported transmissions 

• Factory manual transmission (5- or 6-speed)
• Does not support automatic transmissions 

OEM functionalities supported (notable ones) 

• VTEC solenoid
• VTC solenoid
• IMRC (Dual Intake Runner System) 

Supports serial communications with the Multiplex Control Unit 

• Coolant temperature display (dash)
• Battery warning light (dash)
• A/C request signal (climate control) 

Supports serial communications with the Immobiliser 

OEM functionalities not supported (notable ones) 

• Automatic transmission
• OEM 4-wire wideband sensor 

Additional functionalities 

• Drive by wire throttle and pedal systems
• Flex fuel
• Boost control 

Connections 

Outputs

• 4 x Ignition
• 4 x Injection (peak and hold)
• 8 x Digital Pulsed Outputs (DPO)
• 9 x Low current DPOs (fixed functions)
• 2 x Half Bridge Outputs (HBO) - eg DBW support
• 2 x Fixed function HBOs
• 1 x ECR output
• 1 x 5V sensor supply 

Inputs 

• 1 x Onboard MAP sensor (4 Bar)
• 15 x Analog Voltage Inputs (AVI)
• 2 x Engine Position Inputs (Trigger and Home)
• 6 x Synchronised Pulsed Inputs (SPI)
• 1 x Knock Inputs
• 1 x Onboard Wideband Controller (NTK/LSU 4.9)
• 1x Ignition Switch Input 

Other 

• 128MB Onboard logging
• 4 channel onboard Oscilloscope 

Communications 

• 1 x CAN Bus Network
• Hi-Speed USB 2.0 C-type Connection
• WiFi communications through internal antenna 

Serial communications 

• Multiplex Control Unit
• Immobiliser light 

Optional Accessories (sold separately)

• HT-189002 - IO Expansion Harness 2.5m (8’)
• HT-189003 - DBW Expansion Harness 2.5m (8’)
•HT-010746 - LSU4.9 Wideband Hardware Pack

Download the Quickstart guide HERE!