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Collections: ECUs and Electronics, Haltech, Sales and Specials

Vendor: Haltech

Tags: ECU, Standalone ECU, Subaru



Haltech PLATINUM PRO Plugin ECU for Subaru WRX

High Performance Fuel and ignition ECU for Subaru Impreza WRX and STi is a direct plug and play replacement of the OEM ECU, no rewiring necessary . This fully programmable ECU interfaces directly with all the standard Subaru sensors and on board computer systems taking control of all the essential engine management tasks such as fuel delivery, ignition timing, boost levels, camshaft positioning and correction maps.


  • Supports Sequential Injection (peak and hold) and Direct Fire Ignition
  • Windows 2000, XP, Vista, Windows 7 compatible software
  • Real time programming, instant hesitation free adjustment while engine is running
  • Fully user definable 32 x 32 mapping
  • Tuning via Volumetric Efficiency (VE), Injection time or Lambda Correction (MAF)
  • Diagnostic Trouble Code Storing & Check Engine Light Control (Access through laptop only)
  • Selectable onboard internal MAP sensor rated to 150kPa (up to 1.5 Bar or 22psi boost)
  • Wideband “auto tuning” using user definable target AFR table
  • USB and CAN Communication Port

    Factory Outputs:

  • 4 x Fuel Injector outputs
  • 4 x Ignition outputs
  • AVCS – Active Valve Control System
  • Boost Control Tumble Generator Valve (fixed open)
  • Idle Control
  • Thermo Fan Check Engine Light Fuel Pump
  • Tacho A/C Clutch Relay

    Factory Inputs:

  • MAF sensor
  • Throttle Position Sensor
  • Knock Detection Sensor
  • Rear Oxygen sensor
  • Coolant Temperature sensor
  • Vehicle Speed Sensor

    Expansion I/O*:

  • 4 x Analogue Voltage Inputs
  • 1 x Digital Input
  • 4 x Digital Outputs

    *Optional auxiliary harness required to be purchased Haltech Part # HT040003

    Configurable for:

  • Aux Rev Limiter
  • Exhaust Gas Temperature Sensors
  • Air Temperature Switch
  • Flat Shift Fuel Temperature Sensors
  • Aux Fuel Pump
  • NOS Enable Oil Temperature Sensors
  • Boost Control
  • Fuel Pressure Sensor
  • Diff Temperature Sensor
  • Battery Light
  • External Map Sensor (Up to 5 Bar)
  • Gearbox Temperature Sensor
  • Generic Duty Output
  • Oil Pressure Sensor
  • Generic Temperature Sensors
  • Nitrous Activation Switch
  • Wideband O2 Sensors
  • Discrete ON/OFF Switches
  • Flex Fuel Sensor

    Want more channels? Up to 36 more I/O channels are available using the optional Haltech I/O 12 and TCA 2/4 CAN Devices!


  • Closed Loop O2 Control
  • Knock Control
  • Long Term Fuel Trim
  • Rev Limiter
  • Closed & Open Loop Boost Control
  • Gear Setup Nitrous Activation Output
  • Over Boost
  • Fuel Composition (E85/Flex Fuel)
  • Speed Limiter
  • Antilag Launch
  • Decel Cut

    Power Requirements:

  • Source: 8.6 to 16.5 Volts DC
  • Consumption: 530mA @ 12Volts DC


  • Subaru WRX MY01-05 JDM,USDM,ADM
  • Subaru WRX STI MY01-05 JDM, ADM

    Engine Codes: EJ20

    Transmission: Manual only (Automatic not supported)

    The Kit includes:

  • Haltech Platinum Pro Plug-in ECU
  • Rear Auxiliary Connector and pins
  • USB Cable
  • Software CD
  • Quick Start Guide

    Optional Accessories: Sold Separately

  • Rear Auxiliary Harness ( HT040003 )
  • 3 Bar Map Sensor ( HT010104 )
  • Air Temperature Sensor ( HT010200)