Haltech Elite 750 + Plug 'n' Play Adaptor Harness Kit – Mazda MX-5 NB (01–05) - HT-150621

The Haltech Elite 750 is a powerful yet accessible ECU designed to deliver standalone control for modern engines in a compact, cost-effective package. This Plug 'n' Play kit includes a direct-fit adaptor harness tailored for the Mazda MX-5 NB8B (2001–2004), NB8C Mazdaspeed (2004–2005, USA), and NB Factory Turbo SE (Australia) models with manual transmissions and 3-row factory ECUs.

Whether you're upgrading your MX-5 for track use, turbocharging, or installing performance modifications, this kit provides a seamless and highly configurable engine management solution.

Key Features

• NOT CARB LEGAL

• Engine Compatibility:

  • Mazda MX-5 NB8B 1.8L VCT (2001–2004)

  • Mazda MX-5 Mazdaspeed NB8C (2004–2005, USA)

  • Factory Turbo NB SE (Australia)

  • Manual transmission only

• Included in Kit:

  • Haltech Elite 750 ECU

  • Plug 'n' Play Adaptor Harness

  • M14 x 1.5 Air Temp Sensor with plug and pins

  • Auxiliary I/O 16-Pin TYCO Plug and Pins

  • Waterproof USB Cap

  • USB Programming Cable

ECU Specifications

• Supports 1–12 Cylinder / 1–3 Rotor engines

• Internal 3-Bar MAP Sensor (rated up to 200 kPa / 29 psi boost)

• 6 x Fuel Injector Outputs (Peak & Hold)

• 6 x Ignition Outputs

• 2 x Digital Pulsed Inputs, 5 x Digital Pulsed Outputs

• 2 x Analog Voltage Inputs, 3 x Dedicated Inputs (TPS, Air Temp, Coolant Temp)

• 2 x Engine Position Inputs

• CAN Bus Communication & USB Laptop Connection (Windows)

• Waterproof (IP67 Rated) Case

• On-board Data Logging

• NSP Calibration Software

Advanced ECU Functions

• Flex Fuel Control (direct ethanol sensor input)

• Closed-loop O2 Control & Idle Speed Control with adaptive learning

• Variable Camshaft Control (single VVT supported)

• Long-term learning (Autotune) on fuel, idle, and cam maps

• 2 Injection Stages (Rotary engines supported)

• Full Nitrous Control (wet/dry, staged)

• Intelligent 3D Boost Control (Open Loop) with flexible mapping

• Per-cylinder tuning correction

• CAN integration with Haltech Dashes and expansion modules

• Wideband O2 & EGT support (via CAN)

• Tuning Table Resolution: up to 32 × 32

• Multi-axis tuning using RPM, MAP, TPS, cam position, ethanol %, etc.

Emissions Notice

This product is intended for off-road and motorsport use only. It is not legal for use on public highways in most regions.