Link G4X Plug-In ECU Toyota 3SGTE SW20 ST185

The Link G4X Plug-In ECU for Toyota 3SGTE Gen2 engines is a direct replacement ECU designed to install inside the factory enclosure with no wiring modifications required. It provides full standalone engine management while retaining most factory sensors and key systems.

This ECU is suited to early 3SGTE engines and is ideal for performance street and track builds. It delivers reliable tuning control and motorsport features while maintaining factory integration.

Why Choose a Plug-In ECU

• No wiring modifications required
• Retains most factory sensors and systems
• Faster installation compared to wire-in ECUs
• Ideal for street and performance builds

Supported Vehicles

• Toyota MR2 SW20 1989 to 1992
• Toyota Celica ST185

Key Features

• Direct plug-in ECU with factory fitment
• Up to 6D fuel and ignition mapping
• Sequential fuel injection
• 5D boost control with multiple tables
• CAN bus support
• 512MB onboard logging memory
• QuickTune automated fuel tuning

Important Notes

• Manual transmission only
• IAT sensor recommended
• Not compatible with ST185 RC models
• E-throttle requires modification
• Check connector matches before purchase

Communications

• USB tuning connection
• CAN bus support

Logging and Control

• 512MB logging memory
• Real time tuning via PCLink software

I/O Expansion

• Additional digital inputs available
• Additional analog inputs available
• Temperature inputs available
• Expansion connectors available