Standalone ECU Haltech NEXUS S3 p&p for mx5 NBFL 01-05

Haltech Nexus S3 – The Highest Level of Standalone Engine Management

• Kit includes a Plug & Play adapter for MX-5 NBFL 01-05 – 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 S3 is a flagship standalone ECU that combines the full capability of Haltech’s top-tier systems with the immense processing power, integration and advanced data capability of the Nexus platform. It is designed for extreme performance builds and competition vehicles where maximum control precision, safety and expandability are essential.

The Nexus S3 delivers uncompromising control for high-output applications: from powerful naturally aspirated engines to large turbo and supercharger setups, as well as advanced staged injection strategies and complex ignition configurations. It is perfectly suited to forged engines, multi-injector systems and professional motorsport fuel setups.

S3 stands out with its exceptional control precision. Faster processing speeds and higher-resolution calculations result in more accurate fuel delivery, ignition control and torque management across the entire operating range. Load sensing can be configured via TPS, MAP or MAF, allowing the ECU strategy to be tailored precisely to any specific engine configuration.

Engine Safety and Protection

One of the key strengths of the Nexus S3 is its advanced safety capability. Dual-channel knock control, synchronised to engine position, provides extremely accurate knock detection even under high cylinder pressures. Multi-layer engine protection strategies can utilise sensors such as oil pressure, fuel pressure, coolant temperature and intake air temperature, enabling progressive intervention rather than harsh cut strategies.

An integrated wideband controller and built-in 4 Bar MAP sensor simplify the overall system, reduce external hardware requirements and improve reliability.

Motorsport Features

The motorsport feature set is comprehensive and deeply integrated: launch control, traction control, flat shift, rotational idle and advanced anti-lag strategies ensure consistent power delivery in competitive environments. Advanced torque management, trans brake support and race timer functionality make the Nexus S3 suitable for circuit racing, time attack, drift and drag applications.

Data Logging and Analysis

The Nexus S3 offers class-leading data acquisition capabilities: 128MB of on-board data logging, dual CAN communication and integrated Wi-Fi allow high-resolution data capture and analysis. Support for shock travel and ride height inputs enables engine output and torque delivery to be influenced by chassis behaviour – a powerful tool for professional race car development.

The Nexus Series is built for professional race teams and highly experienced enthusiasts. If you are building a no-compromise competition car and pushing your project to the limit, Nexus S3 delivers ultimate control precision, safety and future expansion capability.

Key Features

• Nexus platform with full Elite 2500-level functionality and beyond
• 8 peak & hold injector drivers and 8 ignition outputs
• Integrated wideband controller and built-in 4 Bar MAP sensor
• Drive-By-Wire support and advanced VVT control (up to 4 sensors)
• Dual-channel knock control with advanced digital filtering
• Multi-layer engine protection based on pressure and temperature sensors
• Advanced features: traction control, launch control, flat shift, anti-lag
• 128MB data logging + Wi-Fi and dual CAN

In 90% of cases our products are in stock; however, depending on availability, shipping may take up to 4 weeks.