Haltech Nexus S2 – Next-Generation Standalone Engine Management ECU
Kit includes a Plug & Play adapter for MX-5 NA – supplied with a dedicated P&P adapter and an intake air temperature (IAT) sensor, allowing quick and hassle-free installation without modifying the factory wiring and eliminating the need to purchase a complete engine harness.
Haltech Nexus S2 is the natural evolution of the Elite 1500 series, offering significantly increased processing power, expanded control strategies, and an integrated wideband controller. It is a modern motorsport-grade platform designed for the most demanding performance builds and competition vehicles.
Compared to the Elite Series, the Nexus S2 delivers faster control loops and higher calculation resolution, resulting in more precise ignition control, improved transient fuel response, and more effective closed-loop strategies. The difference is especially noticeable in track and competition applications where precision and consistency are critical.
Advanced Engine Control
- Support for Drive-By-Wire
- Advanced variable cam control (up to 4 sensors)
- Flex Fuel support
- Staged injection
- Extensive sensor integration
The Nexus S2 performs exceptionally well in forced induction builds, ITB setups, and highly developed naturally aspirated engines, delivering greater control resolution, sharper throttle response, and more stable torque management.
Engine Safety & Protection
The ECU features dual-channel knock control and multi-level protection strategies based on pressure and temperature sensors (oil, fuel, coolant, intake air). This allows staged intervention before serious engine damage can occur.
An integrated 4 Bar MAP sensor and built-in wideband controller reduce the need for external hardware, simplifying installation and improving overall system reliability.
Motorsport Functions
- Traction control
- Launch control
- Flat shift
- Rotational idle
- Anti-lag
- Advanced torque management
- Trans brake support
- Race timer function
Advanced boost control strategies (4D closed-loop with learning capability and CO₂ support) enable extremely precise boost management for circuit racing, time attack, drift, and drag applications.
Data Logging & Analysis
- 128 MB of onboard data logging
- Dual CAN communication
- Integrated Wi-Fi
- Support for shock travel and ride height inputs
With its advanced data acquisition capabilities, the Nexus S2 supports not only engine development but also chassis tuning and overall vehicle balance optimization.
Key Features
- Nexus platform with increased processing power and higher control resolution
- Integrated wideband controller and 4 Bar MAP sensor
- Drive-By-Wire and advanced VVT control
- Dual-channel knock control
- Multi-layer engine protection strategies
- Advanced motorsport functionality
- 128MB logging, Wi-Fi, and dual CAN communication
Haltech Nexus S2 is a future-ready ECU platform for the most demanding projects – maximum precision, complete control, and professional-grade electronics.
In 90% of cases our products are available; however, depending on stock availability, shipping may take up to 4 weeks.