Link ECU | G4X GTTLink | NGTTX | Plug - In

Link ECU 215-4000

( 215-4000 )


Used for: Tuning the 'Grey Plug' RB engine commonly found in the Nissan Skyline R34.

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Link Engine Management Logo | LINK ECUS IN ESSEX

Link ECU | "G4X GTTLink NGTTX"

  • Designed for: Nissan "Grey Plug" RB [Typically NEO] Engine.
    Full list of suitable applications below.
  • The G4X GTTLink NGTTX is a Plug-In ECU developed by Link Engine Management, designed to maximise the potential of your car.
  • Link's NGTTX ECU fits directly into the factory location / enclosure, requires no alteration of the factory wiring loom / harness, and is designed to be simple to install.
  • This ECU works for manual transmissions only.
  • Most factory features are supported, however; the ECU does not currently output the 4WD signal required for proper 4WD operation in 4WD Stageas & Skylines.
  • Models fitted with factory traction control - TCS will no longer function - the TCS & Slip Lamps will be iluminated.
  • GTTLink NGTTX supports the following vehicles: 
    Nissan Skyline R34 [RB20DE NEO | RB25DET NEO | RB25DE NEO]
    Nissan Laural C35 [RB20DE NEO | RB25DET NEO | RB25DE NEO]
    Nissan Stagea [RB20DE NEO | RB25DET NEO | RB25DE NEO]
    + Non NEO Motors in Stageas.


Features | "G4X GTTLink NGTTX"

Expansion Connector 1:

  • S.GND | Ground Sensor Only
  • +5V OUT | Low Current +5V Supply
  • DI 7 | Digital Input
  • DI 8 | Digital Input
  • AN VOLT 10 | Analog 0-5V Input
  • AN VOLT 9 | Analog 0-5V Input
  • IGN 7 | Ignition 7 Auxiliary Output
  • IGN 8  | Ignition 8 Auxiliary Output

Expansion Connector 2:

  • S.GND | Sensor Ground Only
  • +5V OUT | Low Current +5V Supply
  • DI 5 | Digital Input
  • DI 6 | Digital Input 
  • AN VOLT 5 | Analog 0-5V Input
  • AN VOLT 6 | Analog 0-5V Input
  • AN TEMP 2 | Temperature Sensor Input
  • AN TEMP 3 | Temperature Sensor Input
    NOTE: PIN 108 - OBD1 Wire now used for IAT on Temp 4.

G4X Plug-In Features:

  • Up to 6D Fuel & Ignition Mapping
  • Precision Closed Loop Cam Control (Four Cam | Independent Control)
  • Sequential Fuel Delivery
  • Digital Triggering, all OEM Patterns
  • 5D Boost Control
  • OEM Idle Hardware Supported
  • Motorsport features; Anti-Lag, Launch Control, Flat Shift
  • Continuous Barometric Correction [on board]
  • CAN Port
  • QuickTune - Automated Fuel Tuning
  • Individual Cylinder Correction
  • USB Tuning Cable included
  • Records into On-Board memory
  • Gear Compensations for Spark, Boost and Fuel
  • More...

Full Specification [Link ECU] 

Link ECU Supply, Installation & Calibration:

  • Redline Tuning can supply, install & calibrate both the Link G4X GTTLink NGTTX ECU or any other Link Engine Management Product currently available in Essex, London and the South East of England.

Contact Redline Tuning 

Important Notes:

  • Please double check / cross reference your existing ECU's pinout with the images we have provided, to ensure connections are correct.

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  • Please note that we do not carry stock for all Link Engine Management products. If we do not have an item in stock it will be ordered for you, please allow up to 2 extra business days for us to process your order. If you need an item urgently, or would like to know if an item is in stock, please contact us here
  • Prices shown do not include VAT, this will be calculated and added at checkout for UK customers.
  • For international customers, sales tax will not be charged at checkout. You will be responsible for the VAT equivalent wherever you live. This will be charged by the courier prior to delivery. We have zero control over these charges and they vary by the destination country. We advise that you check before ordering if you are unsure.
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