Haltech NEXUS Rebel JZ Engine Management System

Haltech NEXUS Rebel JZ ECU and Terminated Harness Kit

Part Number: HT-220205

The Haltech NEXUS Rebel JZ is a complete engine-management and terminated-harness package developed specifically for Toyota 1JZ and 2JZ engine swaps.

The Rebel JZ combines the ECU, power management, wideband controller, onboard data logging, Wi-Fi connectivity, and an easy-to-install JZ engine harness in one integrated system. Dedicated, preconfigured inputs and outputs eliminate much of the wiring and software setup normally required with a universal standalone ECU, while Haltech’s Rebel JZ Setup Wizard makes initial configuration straightforward.

The kit supports naturally aspirated and turbocharged 1JZ and 2JZ engines, including VVT-i and non-VVT-i variants, with a cable-operated throttle and manual transmission. An optional sub-harness also supports conversion to a compatible Bosch drive-by-wire throttle.

Key Features

• Designed specifically for Toyota 1JZ and 2JZ engines
• Supports selected 1JZ-GE, 1JZ-GTE, 2JZ-GE, and 2JZ-GTE applications
• Supports VVT-i and non-VVT-i engines
• Complete terminated and labeled engine harness
• Included cable-throttle and idle-air-control sub-harness
• Optional Bosch drive-by-wire throttle support
• Full sequential fuel injection and direct-fire ignition control
• Included R35 coil-on-plug ignition sub-harness
• Built-in Bosch LSU 4.9 wideband controller
• Built-in 4-bar MAP sensor for naturally aspirated or boosted combinations
• Included dual Bosch knock sensors and mounting adapters
• Included 150 psi oil-pressure sensor
• Onboard Wi-Fi and high-speed USB-C connectivity
• 32 MB onboard data logging
• Haltech Rebel JZ Setup Wizard
• VVT-i cam control
• Up to 3D long-term learning
• Flex-fuel capability
• Closed-loop oxygen-sensor control
• 3D closed-loop boost control
• Dual-channel knock control
• Multi-level engine protection
• Launch control, traction control, flat shift, nitrous control, transbrake control, and anti-lag
• Direct control of the ignition, injectors, starter, fuel pump, cooling fan, and additional auxiliary functions
• Haltech CAN integration for compatible dashes, keypads, PDMs, wideband controllers, I/O expanders, and other Haltech CAN devices

Kit Includes

• HT-220002 — NEXUS Rebel JZ ECU
• HT-186400 — Main terminated engine harness
• HT-186120 — Denso alternator harness
• HT-186121 — Bosch alternator harness
• HT-186122 — Tundra alternator harness
• HT-187005 — Toyota R154 manual-transmission harness
• HT-186160 — Cable-throttle and idle-air-control sub-harness
• HT-186004 — Inline-6 Timer/EV1 primary-injector harness
• HT-186063 — Inline-6 R35 coil-on-plug ignition harness
• Bosch LSU 4.9 wideband oxygen sensor
• Weld-on oxygen-sensor bung
• Haltech air-temperature sensor
• Weld-on air-temperature-sensor bung
• 2 Bosch knock sensors
• 2 knock-sensor mounting adapters
• Haltech 150 psi oil-pressure sensor
• 1/8 BSPT male to 1/8 NPT female oil-pressure-sensor adapter

The supplied R35 coil harness does not include ignition coils or a coil-mounting bracket. Haltech’s HT-120200 JZ-to-R35 coil-conversion kit is available separately.

ECU Specifications

• 6 preconfigured ignition outputs
• 6 preconfigured high-impedance injector outputs
• Falling-edge direct-fire ignition control
• 5 user-configurable digital pulsed outputs
• Digital pulsed outputs are low-side switched and rated for up to 3 A each
• 2 user-configurable synchronized pulsed inputs
• Synchronized pulsed inputs support frequency, duty-cycle, and analog measurement
• Synchronized pulsed inputs support Hall-effect, optical, and reluctor sensors
• Maximum synchronized pulsed-input voltage of 25 V
• Maximum synchronized pulsed-input frequency of 22.5 kHz
• 3 user-configurable 0–5 V analog inputs
• Software-selectable 1 kΩ pull-up resistor on user-configurable analog inputs
• 3 differential engine-position inputs for crankshaft and camshaft signals
• 2 dedicated coolant-temperature and air-temperature inputs
• 2 dedicated fuel-pressure and oil-pressure inputs
• 4 throttle-position and accelerator-pedal-position inputs
• 1 onboard 4-bar MAP sensor
• 1 transmission or vehicle-speed-sensor input
• 1 dedicated flex-fuel-sensor input
• 2 dedicated knock-sensor inputs
• 1 onboard Bosch LSU 4.9 wideband channel
• 4 half-bridge outputs for idle-air-control or drive-by-wire throttle operation
• 1 dedicated tachometer output
• 2 CAN or transmission power-supply outputs rated at up to 8 A
• 1 dedicated 25 A switched 12 V output
• 1 dedicated 25 A fuel-pump output
• 1 dedicated 25 A cooling-fan output
• 1 user-configurable 25 A starter or auxiliary output
• 1 Haltech CAN network
• High-speed USB 2.0 through a USB-C connection
• ECU configuration, data access, and firmware updates available while powered through USB
• Integrated Wi-Fi for wireless communication and data extraction
• Laptop and onboard data logging
• 32 MB onboard logging memory
• Up to 300 channels per log
• Maximum logging frequency of 1 kHz
• Integrated 4-channel oscilloscope
• 32 × 32 tuning-table resolution
• 8–22 V operating-voltage range
• Overall dimensions of 7.7 × 5.9 × 1.8 in. (196 × 149 × 44.5 mm), including connector protrusion
• Weight of approximately 2.53 lb. (1.15 kg)
• Ambient operating-temperature range of −40°F to 185°F (−40°C to 85°C)

Application Notes

• Supported engine configurations include:
  • 1JZ-GTE non-VVT-i
  • 1JZ-GE VVT-i
  • 1JZ-GTE VVT-i
  • 2JZ-GTE non-VVT-i
  • 2JZ-GE VVT-i
  • 2JZ-GTE VVT-i
• The supplied kit is configured for a cable-operated throttle body and manual transmission.
• The included throttle sub-harness supports the applicable Toyota throttle-position sensor and idle-air-control system.
• Conversion to a compatible Bosch drive-by-wire throttle requires the optional HT-186162 drive-by-wire sub-harness and a compatible accelerator-pedal assembly.
• Toyota ETCS-i, sometimes described as Toyota’s semi-drive-by-wire system, is not supported.
• The supplied injector sub-harness uses Timer/EV1 injector connectors.
• Optional injector sub-harnesses are available separately for USCAR/EV6 and Sumitomo/Denso injector connectors.
• The ECU supports high-impedance fuel injectors only.
• The included ignition sub-harness is designed for direct-fire R35-style coil-on-plug ignition.
• R35 ignition coils and the required coil-mounting hardware are not included.
• Factory distributor ignition, wasted-spark ignition, and ignition systems using the original external igniter are not supported.
• The original 1JZ coolant-temperature sensor is not supported. A compatible 2-pin coolant-temperature sensor is required.
• The harness supports the original crankshaft and applicable camshaft-position sensors for supported VVT-i and non-VVT-i engines.
• Non-VVT-i engines can use both factory camshaft sensors for faster synchronization during startup.
• VVT-i engines use the rear camshaft-position-sensor connection and include direct control of the factory VVT-i solenoid.
• The onboard 4-bar MAP sensor supports naturally aspirated and boosted applications up to approximately 43 psi of boost at sea-level atmospheric pressure.
• An external MAP sensor can be installed for combinations operating beyond the onboard sensor’s range.
• Factory airflow meters are not used; engine load is calculated from manifold pressure and the configured speed-density fuel model.
• Factory sequential-twin-turbo control is not supported. Single-turbo and mechanically simplified turbo arrangements can be controlled using the available boost-control functions.
• A boost-control solenoid is supported but is not included.
• The supplied transmission harness is configured for a Toyota R154 manual transmission.
• Other compatible manual transmissions require the appropriate vehicle-speed, reverse-lockout, and related wiring through the transmission breakout connector.
• Automatic-transmission control is not included with this kit.
• A flex-fuel composition sensor is supported but is not included.
• The kit includes one 150 psi pressure sensor for oil-pressure monitoring.
• A separate fuel-pressure sensor can be added to enable fuel-pressure compensation and fuel-pressure-based engine-protection strategies.
• The onboard wideband controller supports one Bosch LSU 4.9 sensor. Dual-bank wideband monitoring requires an additional Haltech CAN wideband controller and sensor.
• The ECU provides one user-configurable 25 A output that is preconfigured for starter-solenoid control but can be reassigned to another suitable high-current function.
• The ECU requires direct battery-positive and battery-negative connections. The required 4 AWG battery cables are sold separately.
• Haltech recommends a 100 A fuse in the ECU battery-positive connection.
• The Rebel JZ Setup Wizard generates an initial configuration based on the selected engine, camshaft, induction system, throttle, MAP sensor, fuel system, injectors, and ignition coils.
• The supplied base configuration is intended to start and operate the engine. Final calibration is still required for the actual engine, fuel system, turbocharger, intake, exhaust, and vehicle combination.
• The ECU’s CAN network is intended for compatible Haltech CAN devices. Retention of factory instrument-cluster, ABS, body-control, transmission-control, or other OEM network functions requires separate application-specific integration.

Haltech Usage Notice

Haltech products are designed and sold for sanctioned off-road, competition, and non-emissions-controlled applications. The purchaser and installer are responsible for confirming compliance with all applicable federal, state, and local emissions and vehicle-use regulations.