Link ECU Plugin G4X Audi TTLink VWAG 1.8l Turbo, PQ34 Platform – 208-4000

Link ECU Plugin G4X Audi TTLink VWAG 1.8l Turbo, PQ34 Platform – 208-4000

Easy to install. Affordable. Reliable.
G4X PlugIn ECUs deliver the latest in engine management technology, designed to maximise the potential from your car.

The TTLink TTX PlugIn ECU fits neatly into the factory OEM location with no modification to the wiring loom required.
This ECU is designed for the VWAG PQ34 1.8L Turbo engine with E-Throttle.

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Compatibility

Please ensure your connector matches the header in the product photo before purchasing.

Transmission: Manual only
MAP Sensor: Onboard 4 Bar or 7 Bar (depending on model)
CAN Connection: Not compatible with CANJST cables. To connect CAN, use CANLTW (PN 101-0211) or CANF (PN 101-0020)
Factory Features: Most OEM functions supported
Refer to the Features section for I/O expansion and wiring details.

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Suitable Applications

Engine Requirements:

• 1.8T engine

• ECU header must have two connectors (121-pin total)

• Must be Drive-by-Wire (E-Throttle)

• Must be Manual Transmission

• Compatible with both FWD and 4WD (Haldex)

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Known Compatible Vehicles

Audi

• TT (1999–2002) – AJQ

Volkswagen

• Beetle (2005) – AWU

• Passat (2000)

• Golf (2001) – AUM

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Likely Compatible (Untested) Vehicles

Audi
A3 (1998–2005) – AJQ, APP, ARZ, ARX, ARY, AUM, AUQ
A4 (1998–2007) – APU, AVJ, AWT, BEX, BFB
A6 (1998–2002) – APU, AWT
S3 (1998–2006) – APY, BAM, AMK, APP, AJQ, ARY, AUQ, AWP, BFV, BVP, BVR

Seat
Alhambra (2000–2004) – AWC
Ibiza (1999–2008) – AQX, AYP, BJX, BBU
Leon (1998–2005) – AJQ, APP, ARY, AUQ, BAM, AMK

Skoda
Octavia (1999–2005) – ARZ, ARX, ARY, AUM, AUQ

Volkswagen
Bora (2000–2006) – ARX, ARY, AUM, AUQ, AWP
Golf (1999–2006) – ARZ, ARX, ARY, AUM, AUQ, AWP
Jetta (2001–2009) – AWP
New Beetle (1999–2004) – APH, AVC, AWP
Passat (1998–2002) – APU, AWT
Polo (2004–2008) – BJX, BBU
Sharan (2000–2004) – AWC

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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 megabytes onboard data logging memory
Staged injection
Knock control with “windowing”

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I/O Expansion Options

There is no separate expansion connector on the TTLink. Expansion pins are accessible through the main header:

• Pin 110 – An Temp 3

• Pin 111 – An Volt 10

• Pin 112 – DI 9

• Pin 113 – Ign 6

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G4X PlugIn ECU Specifications

Injector and Ignition Control

• 6–8 High Current Injector Drives (supports high impedance injectors)

• 6–8 Ignition Channels

• 8 Auxiliary Outputs (all PWM capable; Aux5–8 can drive steppers or high/low outputs)

• 11 Digital Inputs (frequency up to 10 kHz)

Sensor Inputs

• 4 Temperature Inputs

• 12 Analog (0–5V) Inputs

• 2 Trigger Inputs (Reluctor, Optical, or Hall)

• 3-Axis Accelerometer

• Onboard Barometric Pressure Sensor

Fuel & Ignition Management

• Traditional, Modelled, and Multi-Fuel equations

• Sequential, Group, or Staged injection modes

• Dual Closed Loop Lambda

• Up to 440 zone fuel and ignition tables

• Up to 6D fuel and ignition mapping

• Individual cylinder trims

• Knock control (2 built-in inputs)

• Variable Valve Timing control (up to 4 cams, independent)

Motorsport & Safety Features

• Antilag, Launch Control, Gear Shift Control

• Traction Control

• Boost by Gear and Closed Loop Boost Control

• Engine protection limiters

• Speed, RPM, and voltage limits

• E-Throttle (Drive-by-Wire) and Cruise Control support

• Advanced CAN communications (dual CAN buses)

• Up to 512MB onboard data logging (250 channels, 100 kHz total rate)

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Included in the Box

• G4X PlugIn ECU

• Wiring and Installation Instructions

• 2 large Link stickers

• 2 small Link stickers