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KO Racing 4AGZE & Gen1 3SGTE Adapter with Link Plug-in ECU
KORacing Products » *LINK ECU*

Finally a fully integrated Plug In EMS option for 4AGZE and Gen1 3SGTE Engines (MR2 Supercharged and 88-89 Celica Alltrac/GT4). Link does not themselves currently make a plug-in ecu for the Gen1 3SGTE or 4AGZE engine, so that typically leaves the option of adapting one of their wire in ecus, or adapting a plug in ecu from a different application to the Gen1/GZE wiring and pinout. What KO Racing has done is design a board that allows the control/logic board from a Link Plug-in ecu to be put directly inside of a 4AGZE or Gen 1 3SGTE ecu case similar to Link’s other plug-in ecu options.

Beyond being a basic pin-out and connector interface to allow the option to "plug and play" with the Link ecu, we have gone a step further by integrating the necessary design features to include an on-board 4 or 7 bar map sensor and, optionally, an ECU controlled on-board wideband. Using these options can cut down on installation time dramatically, and the on-board ecu control of the wideband means you can promote longer sensor life than typical installation of as wideband controller wired to key on 12v supply. Installation can become as simple as running a wideband sensor and cable to the ecu, and running a vacuum line to the ecu from the intake manifold. Plug in your USB cable, plug in the ecu into the car and start tuning.


  • Fully compatible with Link G4+ and G4x plug in ecu controllers
  • Has 2 CAN bus connectors, and 2 expansion connectors on board (with the same pinouts as the 3SGTE Gen2/3 V2-3 ST205 G4+/G4x plug-in)
  • 4 or 7 bar on board map sensor for up to 43.5psi or 87psi boost or you can use the OEM map sensor - just disable whichever input your don't want to use (approximately 2.5 bar or good to 21psi boost)
  • Spartan LSU4.9 On board Wideband (optional)
  • Directly bolts into the 1988-1989 4AGZE or 3SGTE engine control unit case. The Board is made such that it can also be fit into a 1991-1999 3SGTE ecu case.

    NOTE: Price includes a Link Plug In ecu control board installed onto the KO Racing Adapter with a KO Racing base calibration. The base calibration is intended only to get the vehicle started and running. Tuning by an experienced tuner will be required or possible serious engine damage could occur.

    NOTE: This product is intended for tuning manual transmission vehicles and includes no provisions for automatic transmission control. It is intended primarily for the 1988-1989 Celica Alltrac/GT Four and MR2 4AGZE Supercharged vehicles.

    LINK G4X Plugin has the following Features:
    (Click Here for full specifications.)

    • Configurable for 2-Stroke, 4 Stroke and Rotary Engines
    • Configurable Firing Order
    • 6 x High Current Injector Drives (suits high impedance injectors)
    • 8 x Ignition Channels
    • 8 x Auxiliary Outputs (All PWM capable). Aux5-8 can control Stepper Motors and drive High or Low
    • 11 Digital Inputs (All capable of reading frequencies up to 10kHz)
    • 4 Temperature Inputs (Configurable pull-ups on ANT1&2)
    • 12 x 0-5V Analog Inputs
    • 2 x Trigger Inputs (Reluctor, Optical or Hall Sensors)
    • On Board Baro
    • Traditional, Modelled and Modelled Multi-Fuel Equations
    • Quick tune (automated fuel tuning)
    • Up to 440 Zone Fuel Table with configurable load and RPM centers. Configurable X and Y Axis Parameters
    • AFR Table Correction
    • Individual Cylinder Fuel Trims
    • Idle ignition control
    • User Configurable RPM Limits based on external input
    • MAP Limit with dual tables
    • Selectable fuel or ignition limiting
    • Each Output independently configurable
    • Unused ignition and Fuel outputs available as auxiliary outputs
    • Ethanol Sensor Control
    • Wheel Speed Detection on all digital inputs with additional general-purpose speed inputs
    • General Purpose switches, speeds, rpms and frequencies
    • large variety of input types
    • Built in 3 axis accelerometer
    • Large number of built in calibrations as well as user configurable calibrations
    • Supports nearly all OEM trigger patterns and custom trigger arrangements
    • Anti Lag
    • Launch control
    • Solenoid, Stepper or EThrottle Control Idle control
    • Open or Closed loop actuator control and Closed loop Ignition control available
    • Has an internal EThrottle Controller and supports external controllers
    • Open or Closed Loop Boost Control
    • Boost control by Gear, coolant temperature, intake air temperature, etc.
    • Built in Knock input and control for ignition and fuel on a per cylinder basis.
    • Variable Valve Timing Control closed loop control for many OEM applications, or PID control for advanced tuners
    • AC Control - Basic and Advanced modes available
    • 512 Megabytes of Datalogging
    • Up to 250 ECU Logging channels
    • Up to 1kHz per channel with a maximum total sample rate of 100kSamples/s when using ECU Logging
    • Unlimited channels when using PCLink logging
    • Tuning Port USB on board
    • Two CAN buses
    • 150 MHz Specialised Engine Management Microprocessor
    • Ignition control to 0.1 degree, fuel to 0.01 ms
    • 32 Bit Floating Point Calculation
    • 12 Bit ADC Resolution
    • 20000+ RPM
    • 4Gb Non Volatile Flash
    • Internal Temperature Range -10 - 85oC
    • Ambient Temperature Range -30 - 90oC
    • Operating Voltage 8 - 22V Operating Current 200mA
    • Electrical protection on all inputs and outputs
    • Onboard Barometric Pressure Sensor
      Typical Packaging Contents
    • G4X PlugInX ECU
    • Wiring and USB Tuning Cable
    • 2 large Link Stickers
    • 2 small Link Stickers
    • Manufacturing Standard – ISO 13485
    NOTE: ECU case not included with ECU purchase as shown in image above. You must reuse and modify your case to allow for wiring to pass through the case.

    NOTE: Picture shown above with custom expansion harness for 2 additional pressure sensor inputs, not included in purchase price of ecu.

    NOTE: This is not a LINK ECU tested, verified, and warranted product. Purchase of this product constitutes your consent with, and understanding of this statement. This is a custom adapter product that uses a part from a Link ECU. Please let KO Racing know if you have any questions or concerns, or require any support for our adapter board.

    $1195.00 Each
    Add Wideband on-board:

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