Description
Description
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.
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 and Benefits
Features and Benefits
- 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)
Included Components
Included Components
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




