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.

• Please check your connector matches the header in the listed photo before purchasing.
• This ECU works with manual transmissions ONLY.
• Most factory features are supported.
• Check the features for I/O expansion options
• A Link Air Temp Sensor is highly recommended with this ECU

Suitable Applications

Toyota MR2 (SW20) from 1989 to 1992
Toyota Celica 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 MB data logging memory
• Staged injection
• Knock with "windowing"

I/O Expansion Options:

The following expansion connector inputs/outputs are provided:
Expansion connector 1

• Gnd - Sensor Ground Only
• +5V Out - Low Current +5V Supply
• DI 5 - Digital Input
• DI 6 - Digital Input
• DI 4 - Digital Input
• 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.

• 1 Ignition 1
• 2 Ignition 2
• 3 Ignition 4
• 4 Ignition 3