Nexus S2 ECU + Universal Wire-in Harness – 2.5m (8′)

Integrated Control for 4-Cylinder Performance

The Nexus S2 VCU + Universal Wire-in Harness Kit is a comprehensive engine management solution designed for 4-cylinder and 2-rotor applications. The Nexus S2 is not just an ECU; it is a Vehicle Control Unit (VCU) that combines engine management, a Power Distribution Module (PDM), and a wideband controller into a single device. This kit includes a 2.5-meter universal harness, providing the materials needed to wire a complete, modern electrical system from scratch.

VCU Technology

The Nexus S2 simplifies vehicle wiring by driving high-current devices like fuel pumps, fans, and headlights directly, eliminating the need for traditional fuse boxes and relays. It features 128MB of on-board data logging, dual-band WiFi for wireless tuning, and advanced engine control strategies derived from the flagship Nexus R5. The included harness is pre-terminated for the S2, allowing fabricators to build a reliable, lightweight electrical system tailored to their specific chassis.

Operational Benefits

• Wiring Simplicity: Integrated PDM reduces total vehicle wiring weight and complexity.
• Advanced Data: High-speed logging and telemetry capabilities for track analysis.
• Robust Control: Handles DBW, boost control, and flex-fuel with motorsport precision.

Fitment Guide

Engine Compatibility: Up to 4 Cylinders / 2 Rotors
Application: Custom Builds, Race Cars, Engine Swaps
Harness Type: Universal Wire-in

Technical Specifications

Summary & What’s Included

A revolutionary VCU and harness package for compact performance builds.

Includes:

• Nexus S2 VCU
• Universal Wire-in Harness (2.5m)
• SurLok Connectors
• USB-C Cable
• Wi-Fi Antenna