Link ECU Online Manual
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© 2024 Link Engine Management Ltd
1
Plug-In ECU Installation Manual
1.1 Introduction
Thank you for purchasing your Link Plug-In Engine Control Unit (ECU), an advanced, fully programmable
microprocessor controlled Engine Management System.
Link software employs high resolution fuel and ignition tables with configurable load and RPM centres. When
coupled with up to six dimensional fuel and ignition mapping, barometric pressure compensation, fuel
pressure compensation, intake air temperature correction and more this gives an unprecedented level of
tuning accuracy. All Link G4X ECUs are in-field upgradeable, there is no need to return the unit for firmware or
software updates.
All Link Plug-In Engine Management Systems are designed with flexibility and ease of installation in mind.
Link Plug-In systems are designed to replace the factory ECU and in most cases are designed to fit inside
the factory ECU's ECU enclosure. This provides an invisible install that requires minimal modification to
vehicle wiring and ECU mounting.
Installing and tuning any after market engine management system is not to be taken lightly. Link ECUs give
the tuner the control & flexibility that only top after-market engine management systems in the world can
provide. While every effort has been made to keep Link ECUs as user friendly as possible, it should be
recognised that added features bring added complexity.
The complete setup of your ECU can be divided into two important tasks:
1. This manual covers the installation of your G4X ECU. While it is not strictly essential that this work is
performed by an automotive electrician, the knowledge and tools available to these professionals makes it
highly recommended. Regardless of who does the installation, it is of utmost importance that instructions
provided in this manual are followed exactly throughout the installation.
2. Once the ECU has been installed it will need to be tuned using a laptop computer with PCLink software.
Information on the configuration and tuning of the ECU is detailed in the help section of PCLink. Link Plug-
In ECUs are shipped pre-loaded with a base configuration that should be close enough to get most
engines running after a few application specific adjustments have been made. While hearing the engine
running on the new ECU for the first time is always a satisfying feeling, it is important to realise that the
job is not complete. The amount of tuning performed and the experience of the tuner are the two most
important factors in determining how happy you will be with your engine management system.
1.1.1
Safety Notice
Your Link Plug-In ECU is designed to enhance the performance of your vehicle. However in all cases, your
vehicle must be operated in a safe manner. Do not tune your vehicle while operating it on public roads.
Failure to follow all installation and operating instructions may result in damage to
the Link ECU, personal injury, or harm to property.
1.1.2
Disclaimer
All care has been taken to ensure the pin outs and interconnections of the ECU to the vehicles wiring harness
are correct. However due to variations between vehicle models it is the installers responsibility to check wiring
connections BEFORE installing the ECU. Link will not be held responsible for any damage caused by the
incorrect installation of this product.
1.1.3
Support Options
Should any issues arise during installation, the following options exist for technical support:
1. PCLink help, press F1 while running PCLink
2. Contact your nearest Link dealer. A Link dealer list is available on our website.
3. Link website: www.linkecu.com with Online Discussion Forum.
4. Technical Support Email: tech@linkecu.com
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