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New S-Series ECU Range
Haltech’s new Nexus S2 and S3 ECUS are successors to the acclaimed Elite 1500 and 2500, respectively. Offering a serious upgrade in performance and functionality, the S-Series combines all the classic functionality of the Elite two-connector range, with new features and the superior processing power of the successful Nexus platform.
KEY FEATURES
- • Supports Dual Drive-by-Wire Throttles
- • Single Channel Onboard Wideband: Expandible to 10 channels via external CAN devices
- • Onboard Wi-Fi using internal antenna: Enables remote monitoring and tuning through NSP and Haltech Connect App
- • USB 2.0 Comms via USB-C: Cable comms speeds up to 40x faster than Elite. Power-up over USB means you can set up your ECU before installing it in your vehicle.
- • Torque Management: Advanced drag racing function enabling pre-defined wheel slip, previously only available on NEXUS R series and Elite 2500T.
- • 128MB Onboard Data-logging.
- • Flexible IO – Unused outputs can be reassigned
PRODUCT SUITS
| NEXUS S2 | NEXUS S3 |
| Up to 4-cylinder and 2-rotor engines with full sequential ignition and injection. | Up to 8-cylinder and 2 to 4-rotor engines with full sequential ignition and injection. |
| Up to 8 cylinders in semi-sequential, and up to 12 cylinders in batch or multipoint injection patterns | Up to 12 cylinders in semi-sequential, batch or multipoint injection patterns |
| Distributor ignition systems, multi-coil systems, or CDI systems. | Distributor ignition systems, multi-coil systems, or CDI systems. |
| Normally aspirated or forced induction. | Normally aspirated or forced induction. |
Outputs
| NEXUS S2 | NEXUS S3 |
| 4 x Ignition | 8 x Ignition |
| 4 x Injection (peak and hold) | 8 x Injection (peak and hold) |
| 6 x Digital Pulsed Outputs (DPO) | 6 x Digital Pulsed Outputs (DPO) |
| 4 x Half Bridge Outputs (HBO) (max 2 x H-Bridges/DBW throttles) (8A max when used as “High Side outputs”) | 4 x Half Bridge Outputs (HBO) (max 2 x H-Bridges/DBW throttles) (8A max when used as “High Side outputs”) |
| ECR output (grounds the negative side of a relay) | ECR output (grounds the negative side of a relay) |
Inputs
| NEXUS S2 | NEXUS S3 |
| Onboard MAP sensor (4 Bar) | Onboard MAP sensor (4 Bar) |
| 11 x Analog Voltage Inputs (AVI) | 11 x Analog Voltage Inputs (AVI) |
| 2 x Differential Engine Position Inputs (Trigger and Home) | 2 x Differential Engine Position Inputs (Trigger and Home) |
| 6 x Synchronized Pulsed Inputs (SPI) | 6 x Synchronized Pulsed Inputs (SPI) |
| 2 x Knock Inputs | 2 x Knock Inputs |
| 1 x Onboard Wideband Controller (NTK/LSU 4.9) | 1 x Onboard Wideband Controller (NTK/LSU 4.9) |
| 1 x Ignition Switch Input | 1 x Ignition Switch Input |
OTHER
| NEXUS S2 | NEXUS S3 |
| 1 x 5V Sensor supply | 1 x 5V Sensor supply |
| 1 x 8V Sensor supply | 1 x 8V Sensor supply |
| 1 x Sensor ground | 1 x Sensor ground |
| 2 x Switched power input pins | 2 x Switched power input pins |
| 2 x Battery ground pins | 2 x Battery ground pins |
| Onboard Wi-Fi | Onboard Wi-Fi |
FEATURES
- • Controlled via NSP (Nexus Software Programmer)
- • Dual Drive by Wire Throttle Control (DBW)
- • High or Low Injector Impedance Control, with programmable peak current and hold current
- • Flexible tuning setup for Petrol (Gasoline), LPG, Methanol and Ethanol allows you to simply select your fuel type
- • Flex Fuel Function – Tune your engine’s boost, fuel and ignition by ethanol content
- • Long-term learning (Auto-tune) on fuel, ignition, cam, boost & idle control maps (up to 4D)
- • Dual CAN Bus communication for Haltech Dashes and expansion devices.
- • Closed Loop Idle Speed Control with learning for consistent idle stability Requires 1 or 2 user-defined outputs (BAC type) or 4 user-defined outputs (Stepper motor type)
- • 4D Closed Loop Boost Control
- • Traction Control – Control your engine’s power output via mappable front vs rear axle or individual wheel speed slip
- • Dual Knock Control – Synchronized to engine position with high-speed digital filtering for accurate detection.
- • Closed Loop O2 Control – Dual bank control capable with optional external CAN O2 Wideband Controller Kit
- • Variable cam control – Independently control up to 4 camshafts – Requires a minimum of 1 user-defined input & output per variable cam
- • Load sensing by Throttle Position (TPS), Manifold Absolute Pressure (MAP), Mass Air Flow (MAF) or Engine Pressure Ratio (EPR)
- • Stepper Motor Control
- • Intake Air Bleed Control
- • Shock Travel & Ride Height Control
- • Sequential turbo control
- • Onboard Wi-Fi – Enables remote monitoring and tuning through NSP and Haltech Connect
- • On-board data logging – Up to 100 channels at 1kHz (1ms) sampling rate or up to 300 channels at a lower sampling rate, loop logging. with 128MB of internal memory.
- • Laptop data logging -Data log all available channels directly to your laptop’s hard drive for both tuning and diagnostics
- • 4 channel Oscilloscope
- • IP64 Rating
ADVANCED TUNING
- • Tuning Table Resolution up to 32 x 32 x 8 (4D)
- • Limitless tuning flexibility -Tune your engine by a combination of 4D tuning tables combined with 3D per cylinder compensations and multiple user-definable corrections. Eg: Tune by a combination of manifold pressure, throttle position, cam position, ethanol content, gear, road speed, race time, EGT, shock travel, ride height or any channel for ultimate flexibility – Dual mapping is a thing of the past.
- • Per Cylinder Tuning Correction – 3D
- • Wideband O2 – Connect up to 10 Channels via CAN expansion devices
- • Thermocouples/EGT (Exhaust Gas Temperature) – Connect up to 12 Channels via external CAN expansion devices
- • Engine Protection – Set advanced multi-level limits for sensors and protect your engine against common causes of failure.
AUTOMATIC TRANSMISSION CONTROL
- • Ford AODE/4R70W
- • GM 4L60E/4l80E
- • Toyota A340E
- • Lenco
- • Liberty – Multiple Outputs Active
- • Jatco (Nissan) 4AX series
- • Jatco (Nissan) 4R series
- • ZF 6HP26 (Available for Ford Falcon 6 Cylinder Only)
RACE FUNCTIONS
- • Launch Control – Control your engine’s power delivery, RPM & boost for consistent performance at the start line
- • Nitrous Control – Advanced programming of up to 6 stages of wet or dry nitrous kits with on/off delays & banked control options
- • Boost Control – Intelligent 4D Closed loop, with learning, flexible user-definable axis and 14 fully user-definable boost target and duty cycle corrections
- • Multiple Boost Control Modes – EG: boost by gear, road speed, race timer, shock travel, ride height etc
- • Closed Loop CO2 Boost Control – Wastegate pressure and position, intake air bleed control (charge pipe wastegate) functionality for the hard-core racer
- • Anti-Lag/Rotational idle – for closed course racing, rally, circuit or drift. Build and maintain boost during closed throttle conditions
- • Rolling Anti-Lag – lock to your current (or pre-set) RPM or road speed for roll racing or pit lane limiting
- • Flat Shift – Optimize your shifting precision via a combination of inputs such as a clutch switch or strain gauge.
- • Shock Travel/Ride Height inputs – Allow dynamic tuning and data logging to assist in chassis development and power delivery
- • Timer Functions – Use the combination of the race timer and 10 additional programmable timers for time-based control of multiple engine parameters, power delivery and other user-definable functions
- • Transbrake Function – Allows smooth and consistent control of start line staging (Bump or Creep)
WHAT’S IN THE BOX?
| NEXUS S2 | NEXUS S3 |
| 1 x HT-212000 Nexus S2 ECU | 1 x HT-213000 Nexus S3 ECU |
| 1 x USB-C Cable | 1 x USB-C Cable |
| 1 x USB-C Dust Cap | 1 x USB-C Dust Cap |
| 1 x Haltech Fabric Keytag | 1 x Haltech Fabric Keytag |
| 1 x Quick Start Guide Booklet | 1 x Quick Start Guide Booklet |
| 1 x Wiring Diagram | 1 x Wiring Diagram |
| Haltech Stickers | Haltech Stickers |
PLUG N PLAY READY
The S-Series can be purchased in Plug’n’play kits, with an adapter harness for the following vehicles:
HONDA
MAZDA
MITSUBISHI
NISSAN
SUBARU
TOYOTA
S-SERIES FAQS
What is the difference between the Elite and the S-Series?
With the S2 and S3, we’ve taken the best features of the Elite 1500 and Elite 2500, and combined them with more modern Nexus hardware.
The S-Series gives you these advantages over the Elite range:
- • Supports Dual Drive-by-Wire Throttles
- • Single Channel Onboard Wideband: Expandible to 10 channels via external CAN devices
- • Onboard Wi-Fi using internal antenna: Enables remote monitoring and tuning through NSP and Haltech Connect App
- • USB 2.0 Comms via USB-C: Cable comms speeds up to 40x faster than Elite. Power-up over USB means you can set up your ECU before installing it in your vehicle.
- • Torque Management: Advanced drag racing function enabling pre-defined wheel slip, previously only available on NEXUS R series and Elite 2500T.
- • 128MB Onboard Data-logging.
- • Flexible IO – Unused outputs can be reassigned
What is the difference between the R-Series and the S-Series?
The R-Series includes on-board Power Distribution functionality, whereas the S-Series doesn’t.
Will you stop producing the Elite Series?
No, the Elite Series will continue production for the foreseeable future.
ACCESSORIES
HT-039067 – Nexus S2/S3/R3 Tube Mount Kit – 41.275mm (1.625″)
HT-039065 – Nexus S2/S3/R3 Tube Mount Kit – 31.75mm (1.25″)
HT-010746 – LSU4.9 Wideband Hardware Pack
HT-010747 – NTK Wideband Hardware Pack
HT-010723 – Wideband Adaptor Harness – 400mm
SAFE & SECURE SHOPPING