Nexus Integration for JZ Legends: Adapter Harness for JZX100 & JZZ30
The Nexus S3 Plug ‘n’ Play Adapter Harness is the premier solution for integrating Haltech’s powerful Nexus S3 VCU into the Toyota Chaser JZX100 and Soarer JZZ30. This harness is designed specifically for the 1JZ-GTE VVT-i engine, providing a direct connection between the vehicle’s factory wiring loom and the Nexus S3. By leveraging the advanced processing power of the Nexus platform, owners can unlock features previously unavailable on this chassis, such as advanced torque management, power distribution control (where wired), and high-speed data logging, all without cutting a single wire.
Engineering for the Nexus Platform
The Nexus S3 combines the functionality of an ECU and a PDM (Power Distribution Module). This adaptor harness is wired to take full advantage of the S3’s engine control capabilities, including full sequential injection and direct fire ignition for the 1JZ. It supports the factory ETCS-i electronic throttle, allowing for modern drive-by-wire mapping. The harness utilizes OEM-spec connectors to ensure a reliable, weather-tight seal with the factory header, maintaining the durability expected of a Toyota.
Operational Benefits
With this harness, the Nexus S3 becomes the brain of the vehicle. It offers superior VVT-i control for broader torque, and the ability to run flex-fuel for massive power gains on ethanol. The harness includes an auxiliary I/O connector, making it easy to add aftermarket sensors for oil pressure, fuel pressure, and wideband O2, all of which can be logged and used for engine protection strategies. While factory traction control is disabled, the Nexus S3 offers its own highly configurable traction control system suitable for street or track use.
Fitment Guide
- Toyota Chaser/Mark II/Cresta: JZX100 (1JZ-GTE VVT-i)
- Toyota Soarer: JZZ30 MY96-01 (1JZ-GTE VVT-i)
- Transmission: Manual Only
Technical Specifications
| Parameter | Specification |
|---|---|
| Supported ECU | Haltech Nexus S3 |
| Throttle Control | Drive-By-Wire (ETCS-i) Supported |
| Transmission | Manual Only |
| Connector Type | Factory Header Interface |
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: Factory TRC and ETCS systems will be disabled. Dash warning lights for these systems will remain on unless bulbs are removed. Manual transmission only.
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