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

The Link G4X ECU TTLink TTX PlugIn Designed for the VWAG PQ34 1.8l Turbo engine with E-Throttle.  
 

• This ECU works with manual transmissions only.   

• Includes an onboard 4 bar or 7 bar MAP sensor.

• Most factory features are supported.

• Check the features tab for I/O expansion options
• This PlugIn ECU is not compatible with the CANJST cables. To connect to the CAN use CANLTW (PN 101-0211) or CANF (PN 101-0020)

Suitable applications:  

• Engine must be 1.8T
• ECU header must have two connectors, 121 pin total
• Must be Drive by Wire (E-throttle)
• Must be manual transmission
• FWD or 4WD (Haldex)
  
  

The following vehicles are known to be compatible:

The following vehicles are likely to be compatible with the ECU, but are untested:

Vehicles with the following engine codes are known not to be compatible:

AEB, AGU, AJH, AJL

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
There is no separate expansion connector on the TT Link. Expansion pins are accessible through the main header, listed below.

• Pin 110 - An Temp 3
• Pin 111 - An Volt 10
• Pin 112 - DI9
• Pin 113 - Ign 6

Download Manual from Link Ecu
Click here

🎁 BONUS — FREE Remote Setup Support ($297 Value)

When you purchase from Kugan Tuning, you also receive:

• Remote ECU flashing assistance
• Basemap selection guidance
• Startup and sensor verification
• Professional tuning support

This ensures your car starts, idles, and runs correctly the first time — helping you avoid costly mistakes and wasted dyno time.