Haltech Nexus S3 ECU – Whitey's Wiring, Brisbane
The Nexus S3 replaces Haltech's popular Elite 2500, adding the faster Nexus processor and new features. It handles engines up to eight cylinders or four rotors, making it a go-to for V8s, six-cylinder turbo builds and rotaries.
We've been a Haltech dealer for over 10 years and know the S3 well. We wire, install and dyno tune Haltech ECUs at our Clontarf workshop. Buying the ECU only? The Plug and Pin Set and flying-lead harness kit versions are also listed on our site.
Complete your install
Nexus S3 ECU Only HT-213000
We don't hold stock of every item, so most products are ordered in especially for your order.
Suits: Engines with up to 8 cylinders or up to 4 rotors. Racing applications where advanced race features and data logging is required.
Includes: Nexus S3 ECU, 4 x mounting bolts, USB-C Cable, USB-C dust cap, Quick Start Guide, Wiring Diagram.
- 8 x peak/hold injector drivers (can be used as low side drive outputs)
- 8 x low current ignition outputs (can be used as low side drive outputs)
- 6 x low side drive outputs, PWM capable (DPOs)
- 4 x push-pull / h-bridge outputs (8A, PWM capable), eg for electronic throttle
- 11 x 0-5V analog inputs with redundancy for electronic throttle and switchable 5V pullup
- Trigger and home inputs with differential inputs, adjustable thresholds and glitch filters
- 6 x synchronous pulsed inputs, zero crossing or adjustable thresholds - cam sensor inputs, frequency inputs or 0-5V analog inputs
- 1 x on-board wideband controller, supporting NTK and LSU4.9
- 1 x on-board 4 bar MAP sensor
- 2 x CAN ports with switchable termination
- Controlled via NSP (Nexus Software Programmer)
- Long Term Learning
- Stepper Motor Control
- 4D Closed Loop Boost Control
- Closed Loop CO2 Control
- Rotational Idle
- Launch Control
- Traction Control
- Anti-Lag
- Dual Knock Control
- Trans Brake Control
- Race Timer
- Multi Stage Fuel Injection
- Multi-level Engine Protection
- 6 Stage Nitrous Control
- 4-sensor variable cam control
- Intake Air Bleed Control
- Flat Shift Control
- Shock Travel & Ride Height Control
- Advanced Torque Management
- On-board Wi-Fi
- On-board datalogging (128MB)
- Ford AODE/4R70W
- GM 4L60E
- GM 4L80E
- Toyota A340E
- Lenco
- Liberty





