ECU Overview
Haltech's Nexus S2 is the successor to the acclaimed Elite 1500, offering a serious upgrade in performance and functionality. The S2 combines all the classic functionality of the Elite 1500 with new features and the superior processing power of the successful Nexus platform.
If you are using a factory harness and are after an easy ECU upgrade, take a look at Haltech Plug 'n' Play Adapter Kits. These adapters plug directly into your Haltech ECU and have a set of factory connectors on the other side which plug straight into the factory harness.
Product Details
- Suits: Plug 'n' Play replacement of the factory ECU for VW/Audi 1.8T AWP ONLY (2001-2006) Volkswagen Golf Mk4 GTI, Bora/Jetta, Beetle, Polo GTI, Audi A3, A4 Quattro Sport, TT Mk1 (8N), Skoda Octavia vRS & SEAT Leon, Toledo. Manual transmission only.
- Includes: Nexus S2 ECU, Overmoulded molded plug 'n' play adaptor harness, M14 x 1.5 air temp sensor with matching plug and pins, auxiliary I/O 6 Pin DTM06-6P and pins.
- Notes: The CAN dash support was developed on a 2003 VW Beetle - other models may not be supported or have reduced dash functionality. Using a Nexus S2 instead of a Nexus S3 will reduce some of the car's factory functionality. Refer to the quick start guide for details.
ECU Features
Automatic Transmission Control
Specifications
| Analog Voltage Inputs (AVI) | 11 |
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| Differential Engine Position Inputs | 2 (Trigger and Home) |
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| Digital Pulsed Inputs (DPI) | 0 |
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| Synchronized Pulsed Inputs (SPI) | 6 |
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| Knock Sensor Inputs | 2 |
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| On-board Wideband Controller | 1 x NTK/LSU 4.9 |
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| Injection | 4 (peak and hold) |
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| Ignition | 4 |
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| Ignition Switch Input | 1 |
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| Engine Control Relay output | 1 |
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| Total Digital Pulsed Outputs (DPO) | 6 |
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| Half Bridge Outputs (HBO) | 4 8A |
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| On-Board PDM | NO |
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| 25A High Current Outputs (HCO) | 0 |
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| CAN Bus Networks | 2 |
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| MAP sensor | Internal (4 BAR) |
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| Inertia / G-Sensor | NO |
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| USB 2.0 | USB-C |
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| Low Power Up via Cable | YES |
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| Wi-Fi | YES |
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| Compatible with Haltech Connect App | YES |
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| Anti-Lag/Rotational Idle | YES |
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| Boost Control | 4D Closed Loop |
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| Closed Loop O2 Control | Dual |
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| CO2 Control | YES |
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| Drive-By-Wire Throttle | Dual |
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| Engine Protection | Multi-Level |
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| Flat Shift Support | Advanced |
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| Flex Fuel | YES |
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| Intake Air Bleed Control | YES |
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| Knock Control | Dual |
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| Launch Control | YES |
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| Long Term Learning | Up to 4D |
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| Nitrous Control Stages | Up to 6 |
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| Race Timer | YES |
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| Rolling Anti-Lag | YES |
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| Shock Travel & Ride Height | YES |
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| Torque Management (Driveshaft and Engine RPM Targeting) | YES |
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| Traction Control | YES |
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| Trans Brake | YES |
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| Tuning Table Resolution | 32x32x8 4D |
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| Variable Cam Control | Up to 4 |
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| Onboard storage | 128MB |
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