The Link to Nexus Power: Adapter Harness for VW/Audi 1.8T AWP
This Haltech Plug ‘n’ Play Adapter Harness is the bridge between your VW/Audi 1.8T AWP (2001-2006) vehicle and the advanced Haltech Nexus S2 or S3 ECU. Designed to plug directly into the factory ECU header, this harness allows for a rapid and reversible installation of a standalone engine management system. It is the perfect foundation for a high-performance build, enabling features like Speed Density tuning, advanced boost control, and engine protection.
Robust Design
The harness is overmoulded for durability and water resistance. It supports the factory sensors and actuators, including the Drive-By-Wire throttle and Variable Cam Timing solenoid. It also breaks out an auxiliary I/O connector, allowing you to easily add aftermarket sensors such as fuel pressure, oil pressure, or a flex-fuel sensor. Included is a fast-response air temp sensor to replace the factory MAF sensor setup.
Technical Specifications
| Feature | Specification |
|---|---|
| Engine Suitability | VW/Audi 1.8T 20V (AWP Code) |
| Vehicle Suitability | Golf Mk4, Jetta, Beetle, Audi TT Mk1, A3, A4 (2001-2006) |
| Compatible ECUs | Haltech Nexus S2, Nexus S3 |
| Transmission | Manual Transmission Only |
| CAN Support | Factory Dash Support (Model Dependent) |
Kit Includes
- Overmoulded Plug ‘n’ Play Adaptor Harness
- M14 x 1.5 Air Temp Sensor with Plug & Pins
- Auxiliary I/O 6 Pin Plug & Pins
Note: ECU is NOT included. This is the harness only.







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