Haltech Nexus T1 ECU (HT-210000)

The Haltech Nexus T1 is a compact standalone engine management system that brings Nexus technology to entry-level performance and conversion builds.

Designed as the successor to the Elite 550, the T1 provides four peak-and-hold injector outputs and four ignition outputs, making it an excellent choice for four-cylinder and two-rotor engines. Larger engines with up to 12 cylinders can also be controlled using semi-sequential or batch-fire injection and ignition configurations.

Despite its compact size, the Nexus T1 includes many advanced features previously found in higher-level Haltech ECUs. These include Wi-Fi tuning, Haltech Connect app compatibility, multi-level engine protection, knock control, advanced boost control, traction control, launch control, rolling anti-lag and up to six stages of nitrous control.

An internal 4 Bar MAP sensor supports naturally aspirated and forced-induction applications, while five configurable analogue voltage inputs and five digital pulsed outputs provide flexibility for sensors and auxiliary devices. CAN communication allows compatible Haltech displays, wideband controllers and expansion modules to be added as the vehicle evolves.

Tuning and diagnostics are handled through Haltech’s Nexus Software Programmer. High-speed USB-C communication, Wi-Fi connectivity, a four-channel oscilloscope and 32MB of onboard logging give tuners the tools needed to configure, diagnose and refine the engine package.

The Nexus T1 uses the same connector and pinout as the Elite 550, allowing existing Elite 550 wiring kits and installations to be retained. Pin 13 can now be configured as either a knock input or SPI 2 input.

Key Features

• Four peak-and-hold injector outputs, also compatible with saturated injectors

• Four ignition outputs

• Internal 4 Bar MAP sensor

• Five fully configurable analogue voltage inputs

• Five digital pulsed outputs

• Two differential engine-position inputs for trigger and home

• Single knock input, shared with SPI 2

• One CAN bus network

• Wi-Fi tuning and Haltech Connect app compatibility

• High-speed USB-C communication

• 32MB onboard data logging

• Up to 300 logging channels at a maximum 1kHz sampling rate

• Four-channel onboard oscilloscope

• Multi-level engine protection

• Flex-fuel support

• Dual-bank closed-loop O2 control with an optional Haltech CAN wideband controller

• Up to two channels of variable cam control

• 4D closed-loop boost control

• Launch control, traction control and rolling anti-lag

• Advanced flat shift, trans-brake and race-timer functions

• Six-stage nitrous and CO2 control

• IP66-rated sealed enclosure

• Fully enabled with no additional feature-unlock charges

Important Fitment Notes

• Designed for cable-throttle applications; drive-by-wire throttle control is not supported.

• A Haltech WB1 or WB2 CAN wideband controller is required for wideband O2 control.

• A wiring harness or AMP 34-pin plug-and-pin set is required and sold separately unless supplied as part of a kit.

Haltech Nexus T1 ECU Technical Specifications

Supported Applications

Outputs

Inputs

Core Engine Control

Engine Protection

Motorsport Control

Communications

Power-up over USB permits access to data logs, settings, firmware updates and diagnostic trouble codes without switching on the vehicle ignition. ECU inputs and outputs remain disabled in USB low-power mode.

Data Logging and Diagnostics

Physical Specifications

Pin 13 differs functionally from the Elite 550: it can be configured as either a knock input or SPI 2.

Electrical Specifications

What Is Included

• Haltech Nexus T1 ECU

• USB-C programming cable

• USB-C dust cap

• Mounting bolt set

Compatible Accessories Sold Separately

• HT-030009 — AMP 34-pin Key 1 plug-and-pin set

• HT-181200 — Nexus T1/T2 Basic Universal Wire-in Harness, 2.5m

• HT-181201 — Nexus T1/T2 Premium Universal Wire-in Harness, 2.5m

• HT-159976 — WB1 Bosch LSU 4.9 Single-Channel CAN O2 Wideband Controller Kit

• HT-159986 — WB2 Bosch LSU 4.9 Dual-Channel CAN O2 Wideband Controller Kit