Nexus S3 Plug ‘n’ Play Adapter Harness Kit – Mazda MX5 NA

The Ultimate NA Miata Upgrade: Nexus S3 & Harness Kit

Elevate your Mazda MX-5 NA to the cutting edge of motorsport technology with the Nexus S3 Plug ‘n’ Play Adapter Harness Kit. This package combines the flagship Haltech Nexus S3 VCU with a vehicle-specific adaptor harness, providing the most powerful and versatile engine management solution available for the B6/BP platform. Designed for the serious enthusiast, this kit offers uncompromised control and connectivity.

Engineering for Maximum Capability

The Nexus S3 VCU brings advanced features like built-in oscilloscope, 128MB data logging, and Wi-Fi connectivity to the Miata. The included adaptor harness ensures seamless integration with the factory loom, routing signals for the engine’s sensors and actuators. The S3 supports full sequential injection and ignition, and advanced boost control strategies. The harness facilitates the addition of extra sensors via the auxiliary I/O port, allowing for comprehensive monitoring of engine vitals like oil pressure and fuel pressure.

Operational Benefits

With the Nexus S3, users can implement advanced traction control, launch control, and engine protection strategies. The system supports drive-by-wire conversions (requires additional hardware) and flex-fuel tuning. The plug ‘n’ play installation minimizes downtime and ensures a reliable electrical connection, allowing you to focus on tuning and driving. The S3’s capabilities far exceed the factory ECU, making it future-proof for any level of modification.

Fitment Guide

• Mazda MX-5 Miata: NA 1.6L & 1.8L (1990-1995)
• Transmission: Manual Only

Technical Specifications

Summary & Includes

Includes:

• 1 x Haltech Nexus S3 VCU
• 1 x Injection Molded Plug ‘n’ Play Adaptor Harness
• 1 x M14 x 1.5 Air Temp Sensor with matching plug and pins
• 1 x Auxiliary I/O 16 Pin Tyco plug and pins

Note: Manual transmission only. Not for OBDII models. TPS upgrade mandatory for 1.6L.