Toyota MR2 V1 Celica ST185 Link G4X Plug In ECU
Toyota MR2 V1 Celica ST185 Link G4X Plug In ECU

Toyota MR2 V1 Celica ST185 Link G4X Plug In ECU

Regular price $2,041.25 Sale

This is the latest Link G4X Toyota MR2 V1 Plug-in ECU.

Designed for the 3SGTE engine in the models specified below. 
  • Please check your connector matches the header in the listed photo before purchasing.  
  • This ECU works for manual transmissions only.  
  • A Link Air Temp Sensor is highly recommended with this ECU 
  • Most factory features are supported.  

Suitable applications: 

Toyota MR2 (SW20) from 1989 to 1992 
Toyota Celica GT4 ST185 (except the Carlos Sainz special edition) 

G4X PlugIn Key Features (where applicable):
Up to 6D fuel and ignition mapping
Precision closed loop cam control (four cam, independent control)
Sequential fuel delivery
Digital triggering, all OEM patterns
OEM idle hardware supported
5D boost control with three switchable tables
Motorsport features - antilag, launch, flat shift
Continuous barometric correction (on board)
CAN port
QuickTune - automated fuel tuning
Individual cylinder correction
USB tuning cable included
Stats recording into on-board memory
Gear compensations for spark, boost and fuel
Real time selectable dual fuel, ignition and boost maps
Sync and crank sensors can be a combination of Hall effect, variable reluctance or optical
Boost control referenced to gear, speed or throttle position
512 mega bytes data logging memory
Staged injection
Knock with "windowing"

I/O Expansion Options:
The following expansion connector inputs/outputs are provided: 
Expansion connector:

  • Gnd                Sensor Ground Only  
  • +5V Out        Low Current +5V Supply 
  • DI 5                Digital Input for switching functions. 
  • DI 6                Digital Input for switching functions. 
  • DI 4                Digital Input for switching functions. 
  • An Volt 4        Analog 0-5V input 
  • An Volt 5        Analog 0-5V input 
  • An Volt 6        Analog 0-5V input 

An ignition expansion is provided allowing you to convert to a Direct Spark ignition system. Alternatively, these outputs can be used to drive auxiliary devices. The following pinout describes the available connections. 
Ignition Expansion:
  • 1 Ignition 1 
  • 2 Ignition 2 
  • 3 Ignition 4 
  • 4 Ignition 3 

    Link G4X ECUs do not require the use of an air flow meter. The engine can be converted to speed density using  MAP sensor and an intake air temperature (IAT) sensor ( air temp sensor sold separately ) 


    The G4X Toyota MR2 V1 plug-in ECU comes with a non-engine-specific base map. The ECU will need to be configured for the engine type and then tuned by a professional. The ECU comes with free PCLink software.

    We can also provide the following with your new Link ECU at an added cost:
    - Fuel System Upgrades
    - Turbosmart Wastegates, Blow off valves and Fuel Pressure Regulators
    - Boost Control Solenoids
    - Dyno Tuning
    - Engine sensors and plugs etc
    - Full Link ECU engine wiring installation available at an extra cost