Nexus S2/S3 Plug ‘n’ Play Adapter Harness Nissan Silvia S15

Nexus Connectivity: Adaptor for S15 & S14A

The Nexus S2/S3 Plug ‘n’ Play Adapter Harness allows for the installation of Haltech’s advanced Nexus S2 or S3 VCU into the Nissan Silvia S15 and S14A “Kouki”. This harness serves as a direct bridge between the factory wiring loom and the Nexus VCU, enabling access to the powerful features of the Nexus platform without the need for a custom rewire. It connects to the 64-pin factory ECU header, mapping the SR20DET’s sensors and actuators to the appropriate VCU pins.

Engineering for the Nexus Platform

This harness is designed to support the specific requirements of the Nexus VCUs. It routes the optical CAS signal for precise trigger decoding and manages the VCT solenoid for optimal cam timing. The harness includes an auxiliary I/O connector, allowing for the addition of wideband O2, fuel pressure, and other aftermarket sensors directly to the VCU. This enables the use of advanced functions like closed-loop fuel control and engine protection strategies.

Operational Benefits

Using this harness with a Nexus VCU provides the ultimate in engine management capability. The Nexus units offer superior processing speed, data logging, and connectivity compared to older ECUs. The harness ensures that the installation is clean, reliable, and reversible. It maintains the operation of key factory systems while giving the tuner complete control over the engine’s performance parameters.

Fitment Guide

• Nissan 200SX / Silvia: S15 (Aust and JDM)
• Nissan 200SX / Silvia: S14A S2 “Kouki”
• Nissan 180SX: S13 Rev 3 “Type X” (1996+)
• Nissan Pulsar: N14/N15 SSS and GTI-R
• Transmission: Manual Only

Technical Specifications

Summary & Includes

Includes:

• 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. Using a Nexus S2 may limit some functionality compared to the S3; check pinouts.