Easy to install. Affordable. Reliable.  
G4X PlugIn ECUs offer the latest in engine management technology, designed to easily maximize the potential from your car.  
This ECU fits inside the factory OEM enclosure. Installation is a breeze, with no alteration of the factory wiring loom required for the models listed below. 

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. 
• Check the features tab for I/O expansion options.
• This ECU will need a modification before E-Throttle is usable.

Suitable applications: 

• Toyota MR2 (SW20) from 1989 to 1992 
• Toyota Celica ST185 (except the GT-Four RC/Carlos Sainz Special Edition which is compatible with the Link TST205X Plugin)

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 allows 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.  (This is not included and needs to be purchased separately.)
Ignition Expansion:
1 Ignition 1 
2 Ignition 2 
3 Ignition 4 
4 Ignition 3