Haltech Nexus Plug-in ECU – Mazda RX-8 + LSU4.9 Wideband Pack – Whitey's Wiring, Brisbane
This Haltech plug-in replaces the factory ECU in the Mazda RX-8 and its RENESIS rotary, plugging straight into the factory loom for a clean install with full standalone control. This version includes the LSU4.9 wideband hardware pack.
As a Haltech dealer for over 10 years, we know the Nexus range well and dyno tune at our Clontarf workshop. If you're planning more boost, bigger injectors or flex fuel, we can help you get the supporting parts right.
Complete your install
Nexus Plug-in ECU - Mazda RX-8 + LSU4.9 Wideband Hardware Pack HT-231402
We don't hold stock of every item, so most products are ordered in especially for your order.
Suits: Mazda RX-8 Series 1 2003-2008, 13B-MSP Renesis 6-port (ADM, USDM, JDM, EUDM) Mazda RX-8 Series 1 2003-2008, 13B 4-port (JDM)
Includes: Nexus Plug-in ECU, Air temperature + Wideband expansion harness 2.5m (8'), Air temperature sensor (1/8' NPT), Mounting hardware, vacuum hose,T-piece,USB cable,Quick Start Guide
Notes: Supports Manual Transmissions Only - Factory manual - 5 speed on 4-port, 6 speed on 6-port
- Nexus Plug-in Mazda RX-8 ECU
- Air temperature + Wideband expansion harness 2.5m (8')
- Air temperature sensor (1/8' NPT)
- Aluminium bung for air temperature sensor
- Mounting brackets and hardware to suit
- 3mm Vacuum hose 2.5m (8')
- 3mm Aluminium Vacuum T piece
- Haltech USB-C cable
- Quick start guide
- Includes sensor, weld in bung and 1.2M / 47" harness plug and play with Nexus Series harnesses
- Drive By Wire Throttle Support
- Single Channel Onboard Wideband Control - Supports LSU4.9/NTK
- Wi-Fi
- 4 channel onboard oscilloscope
- Data logging 128MB
- Flex Fuel
- Closed Loop O2 Control
- Dual Knock Control
- Variable Cam Control
- Long term learning
- 4 X Digital Pulsed Outputs
- 4 X Synchronised Pulsed Inputs
- 1 X Onboard Wideband
- 2 X Sensor Ground
- 2 x 12V Output
- 2 x 5V Output
- Drive-By-Wire / Electronic throttle
- Alternator control
- Cruise control switch
- Oil Metering Pump (OMP)
- Secondary Shutter Valve (SSV) solenoid
- Variable Dynamic Intake (VDI) solenoid
- Variable Fresh Air Duct (VFAD) solenoid
- Auxiliary Port Valves (APV) motor
- Electronic Power Steering
- DSC / Traction control
- Instrument cluster
- Rear O2 sensor (used as narrowband)
- ABS module (Note: Limited support. Currently we support the AUDM, JDM, USDM, and two different European versions of the ABS module. Other modules will have different CAN addressing.) ABS modules using K-line (instead of CAN) is not supported.
- Immobiliser light on dash (Note: We don't support the immobiliser, but the Haltech Plug-in ECU will still function and run the car regardless of the factory immobiliser and can prevent the immobiliser warning light from turning ON when the factory ECU is replaced.)





