Link ECU G4X TTLink AUDI TT PlugIn ECU fits the VWAG PQ34 1.8l Turbo E-Throttle

  • £1,625.00
    Unit price per 
Tax included.


Free yourself from the constraints of the factory ECU. 

The Link G4X ECU: TTLink TTX PlugIn fits the VWAG PQ34 1.8l Turbo e-throttle. The Audi ECU is a direct fit in the factory location. 

Installation is a breeze with no alteration of the factory wiring loom required. A built-in connector (or pins in some models) provides additional inputs and outputs such as oil pressure inputs or anti-lag / logging switches. 

Most factory features are supported.

Includes Integrated 4 Bar MAP Sensor

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 capability 
  • Staged injection
  • Knock with "windowing"

The PlugIn ECU is capable of the following features, if the car it is being used in can support them.

Engine configurations are pre-set into PlugIn ECUs with a "start" base map.

Engine Configurations

1-12 Cylinder Distributed

2-12 Cylinder Wasted Spark

1-8 Cylinder Direct Spark

Odd Fire Engines

2-Stroke, 4 Stroke and Rotary Engines

Configurable Firing Order

Configurable TDC Points (for odd fire)


8 x High Current Injector Drives (suits high impedance injectors)

8 x Auxiliary Outputs (All PWM capable). Aux5-8 can control Stepper Motors and drive High or Low

11 Digital Inputs (All capable of reading frequencies up to 10kHz)

+5V Out

+8V Out

4 Temperature Inputs (Configurable pull-ups on ANT1&2)

12 x 0-5V Analog Inputs

2 x Trigger Inputs (Reluctor, Optical or Hall Sensors)

On Board Baro

3 Axis Accelerometer

Fueling adjustments

Traditional, Modelled and Modelled Multi-Fuel Equations

Single-Point Group, Multi-Point Group, Sequential, Semi-Sequential, Group Staged, Sequential Staged and Sequential/Multi Point Group Staged injection modes

Asynchronous injection (can add more fuel after initial injection if conditions change)

Quick tune (automated fuel tuning)

Up to 440 Zone Fuel Table with configurable load and RPM centers. Configurable X and Y Axis Parameters

Multiple Fuel Tables

Up to 6D Fuel Mapping (3D Fuel Table + 3x3D Overlay trim tables)

Injection Rate Control for Group Injection Modes

Master Enrichment for Traditional Fuel tuning

Pre-Crank Prime

First Crank Prime

Crank Enrichment

Post Start Enrichment

Warm Up Enrichment

Acceleration Enrichment

IAT Fuel Correction

Injector Deadtime Compensation

Injector Short Pulse Width Compensation

Injector Timing Control with Beginning, Middle or End Injection Definable

AFR Table Correction

Dual Closed Loop Lambda

Individual Cylinder Fuel Trims

Overrun Fuel Cut

Idle Load Trims

Fuel Temperature Correction

Barometric pressure compensation

Injector test function

Ignition Adjustments

Distributor, Twin Distributor, Wasted Spark, Direct Spark, Rotary leading Wasted and Rotary

Leading Direct Ignition Modes

Up to 440 Zone Ignition Table with configurable load and RPM centers. Configurable X and Y Axis Parameters

Configurable Maximum Advance

Configurable Spark Duration

Configurable Spark Edge

Dwell Time Table with configurable X and Y Axis Parameters

Multiple Ignition Tables

Up to 6D Ignition Mapping (3D Ignition Table + 3x3D Overlay Trim Tables)

Individual Cylinder Ignition Trim

IAT Trim

Voltage Correction

ECT Trim

OEM Compatibility

CDI Compatibility

Transient ignition retard

Adjustable ignition delay compensation

Ignition test function

Idle ignition control


Engine Temperature Dependent Progressive Limiting

Dual Vehicle Speed Limits

System Voltage Limit

User Configurable RPM Limits based on external input

MAP Limit with dual tables

Optional hard cut

Progressive cut control

Selectable fuel or ignition limiting

Ignition trim and configurable trim decay

Adjustable control range

Selectable cut effect (adaptive or constant)

Auxiliary Output Options

Each Output independently configurable

Unused ignition and Fuel outputs available as auxiliary outputs

General Purpose Outputs

General Purpose PWM Outputs

Fuel Pump Control

Fuel Pump Speed Control

Engine Fan Control

Air Con Clutch Control

Air Con Fan Control

Intercooler Spray Control

Tacho Control

Speedo Control

Check Engine Light

Purge Solenoid

Oxygen Sensor Heater

Switched Cam Solenoid Control

ECU Hold Power Control

Shift Light Control

Starter Control

VVT Cam Solenoid

Boost Control Solenoid

Test functions for each output

Closed loop Stepper Control & Rotary Oil Pump Control

Idle Speed Soloenoid

Idle Speed Stepper

Internal Ethrottle Controller

External EThrottle

Digital Inputs

Each channel independently configurable with pull-up resistors and active state control

All digital inputs capable of reading frequencies of up to 10kHz

Duty Cycle measuring on all digital inputs

Turbo speed

Ethanol Sensor Control

Wheel Speed Detection on all digital inputs with additional general-purpose speed inputs

Anti-Theft control through digital inputs, over CAN or both

General Purpose switches, speeds, rpms and frequencies

large variety of input types

Analog Inputs

Each input independently configurable with preset or custom calibrations and configurable fault conditions

Built in 3 axis accelerometer

Built in Barometric Pressure Sensor

Large variety of Analog input functions

General Purpose Temperatures, Pressures, Rotary Switches and more

Built in Wideband Controller

Analog Inputs can also be used as Digital Inputs

Large number of built in calibrations

Ten Calibration Tables and 3 Linear Calibrations for when a custom calibration is required


Digital Trigger Decoding

Reluctor, Optical Proximity or Hall Sensors

Programmable filtering and arming thresholds

Configurable trigger patterns or preset triggering options

Supports nearly all OEM trigger patterns and custom trigger arrangements

Programmable Math Processing

Eight individually controllable math channels with up to four parameters in each

Math channels can be used as table axis’s and as digital or analog inputs

Motor-Sport Features

Anti Lag

Launch control

Gear Shift Control (Digital Inputs, Gear Lever Force or Gear Barrel Position)

Traction control

Anti-Lag System

Dual 3D Fuel enrichment, Ignition cut and Ignition retard Tables

Optional Cyclic idle (normal and cool-down)

Optional 3D Idle controller Override Tables (one for Antilag and one for Cyclic Idle)

Lockout condiitons based on engine speed and throttle position with hysteresis

Launch Control

Single RPM, 3D RPM Table or Latched (RPM when button pressed) Launch modes

Progressive cut control

Selectable fuel or ignition limiting

Selectable cut effect (adaptive or constant)

Adjustable control range

Vehicle speed controlled

Ignition Trim with optional 3D table and relative or absolute ignition angle options

Optional 3D Fuel Trim table

Gear Shift Control

Digital input (clutch switch), gear lever force (sequential gearbox), gear lever force (H pattern gearbox), and gear barrel position sensor input options

Timed or controlled modes

Adjustable progressive cut levels

Power re-introduction control

Ignition retard control

Fuel enrichment control

Cut duration based on gear

Traction Control

Disable switch

Various Lockout conditions

Multiple 3D slip Threshold tables

Traction Control - controlled tyre slip to improve vehicle safety and driveability

Uses an advanced Torque Management system to reduce engine torque

Idle Control

Solenoid, Stepper or EThrottle Control

Open or Closed loop actuator control and Closed loop Ignition control available

Large variety of position offsets for open loop and additional target offsets for closed loop actuator control

Specific start-up offsets and hold times

Dashpot functionality to smooth re-entry into idle and prevent undershoot

Electronic Throttle Control

Has an internal EThrottle Controller and supports external controllers

Multiple 3D target tables

Boost Control

Open or Closed Loop Boost Control

Multiple Target and Base Position Tables

Multiple Trim tables

Boost by Gear control

Knock Control

2 Built in Knock inputs

Fuel Enrichment and Ignition Retard functionality

Adjustable frequency filter

Adjustable gain (per cylinder)

Individual cylinder detection

Individual cylinder ignition retard and fuel enrich

Adjustable detection angle (start/end)

Noise threshold table (3D)

Adjustable ignition retard and fuel enrich sensitivity

Configurable ignition reintroduction and fuel enrich decay

Variable Valve Timing Control

Up to 4 cams independent control

Supports many OEM applications

Closed loop control

Multiple 3D Cam angle target tables

Optional advanced PID control settings for advanced tuners

Automatic function for calibrating cam angles

Chassis and Body

AC Control - Basic and Advanced modes available

AntiTheft - Via Digital Input, CAN or both

Speed based cruise control (EThrottle only)

Gear Detection - CAN, RPM/Speed or Analog Position Sensor

Individual wheel speed sources with the ability to specify Driving and Non-Driving wheel speed sources

Starter control - Multiple options available from very basic to Touch to start.

Torque Management


512Mb of 32bit Internal logging memory

Up to 250 ECU Logging channels

Up to 1kHz per channel with a maximum total sample rate of 100kSamples/s when using ECU Logging

Unlimited channels when using PCLink logging


Tuning Port USB on board

Two CAN buses

Custom CAN configuration allowing tuners and end users to add support for new CAN devices


150 MHz Specialised Engine Management Microprocessor

Ignition control to 0.1 degree, fuel to 0.01 ms

32 Bit Floating Point Calculation

12 Bit ADC Resolution

20000+ RPM

4Gb Non Volatile Flash


Internal Temperature Range -10 - 85oC

Ambient Temperature Range -30 - 90oC

Voltage 8 - 22V

Operating Current 200mA

Electrical protection on all inputs and outputs

Onboard Barometric Pressure Sensor

Packaging Contents


Wiring and Installation Instructions

2 large Link Stickers

2 small Link Stickers


CAN Lambda Link’s CAN-Lambda is an easy to use CAN-module that provides digital wideband sensor control via CAN bus and is compatible with leading aftermarket ECUs.

The CAN-Lambda’s ability to measure the proportion of oxygen in exhaust gases makes it an essential tool for accurately tuning fuel mixtures as well allowing your ECU to make tuning adjustments on the fly. 

Being fully digital the CAN-Lambda’s powerful LSU 4.9 sensor will eliminate any loss of signal, risk, delays and errors that analogue alternatives cause. The CAN-Lambda never requires free air calibration. 


  • CAN-Lambda device
  • Bosch LSU4.9 Sensor
  • Deutsch 4-Way Connector Kit
  • O2 Bung and Plug
  • 2 Large Stickers
  • 2 Small Stickers
  • Quick Start Guide

Enclosure 60 x 26 x 15mm
Lead length 170mm
Weight 70g

Input Voltage
Controller 7.5 - 20 V
Sensor 10.8 - 16.5 V

Input Current
Controller 100 mA
Sensor Heater 8 A

Operating Temp -20 - 100 deg.C
Sensor Bosch LSU4.9
Sensing Range 0.67 - 10 lambda

CAN Frequency 1Mb/s,500kb/s,250kb/s,125kb/s


The LINK ECU MXS Strada Car Dash Display is the evolution of MXL Strada, one of the most widely-spread dashes on tracks and streets all over the world. The MXS Strada has a 5″ colour display with great visual impact, configurable to show lap times and all the info coming from the Engine Control Unit (ECU) , analog/digital inputs, pre-defined math channels and optionally, the GPS Module. Its data sampling capability can also be incremented adding up to eight expansion modules.

LINK ECU MXS Strada Car Dash Display is a high colour, high contrast 5" TFT dash display ideal Street and race car/bike installations. The Dashes are available with (Road) and without (Race) icons and are fully configurable.

The Road icon edition has Road icons down the side, which include turn signals, high beam lights, oil pressure, water temperature warnings and an engine check light.

** The Link MXS VERSION Has An Engine Check Light instead of a Low Fuel warning light. See Photos.

You can configure alarm LEDs choosing colour, blinking frequency and defining the logic for turning them on or off. 

The Aim MXS Strada Car Racing Dash/Display is for use on tracks and streets. It acquires data from the ECU of your vehicle making it relatively easy to fit.

An additional socket on dash for a Reversing Camera.

What you are buying: 

Link ECU MXS Strada
USB cable
14 pin standard wiring
23 pin connector + contacts


Link MXG Strada 7” dash, powered by AIM.

The Link MXG Strada Street edition is a full colour, 7-inch dash display legal for road use featuring 10 RGB shift lights and street icons down the side of the dash. It is pre-configured to work with all Link G4+/G4X Wire-In and Plug-in ECU's. See features tab for more information.

The Link MXG Strada Street Edition dash features customisable shift lights, six street icons and a high contrast 7” TFT screen display. Visual quality is always optimal as the ambient light sensor auto-adjusts the brightness of the display. 

The 10 multi-coloured RGB shift lights on the MXS Strada can be customised to your liking to define the RPM threshold for each single gear. There are also 8 Street Icons located to the side of the screen. These include an indicator lights, headlight, high beam, check engine, oil pressure warning light, temperature warning light and fuel light.

The dash is extremely easy to use, with buttons on the side to navigate through a library of preset display styles, depending on what information you want to see and in what layout. The screen can display all real-time information reading from the ECU such as RPM, speed, water temperature, oil pressure and much more. 

The Link MXG connects directly to your Link ECU via the pin kit and wiring provided in the box.

What you are buying: 

Link MXG 1.2 Strada
USB cable
14 pin standard wiring
23 pin connector + contacts

Manufacturing Standard – ISO 13485


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