Plug-In ECU Installation Manual 7
© 2024 Link Engine Management Ltd
The majority of questions received by the technical support team are clearly answered in the manuals. Please
consult the manuals to make sure that your question has not already been answered.
1.2 Pre-Installation
Before installing the Link ECU into the vehicle some pre-installation checks must be performed.
1.2.1
Compatibility Check
It is essential that a compatibility check is performed before installing the ECU into the vehicle. Failure to do
so may void the warranty. There are some cases where the same ECU connector is used on very similar
vehicle models but with a completely different pinout.
1.2.1.1 WRXLink (11)
Link has two different plug-in ECU models to suit the WRX11, these are called WRX11 and WRX11USDM.
WRX11 supported models:
·
2007-2014 WRX and WRX STI with GR/GV/GH/GE chassis codes, for JDM/AUDM/SADM/EURO
markets, with turbocharged EJ20 or EJ25 engines.
·
2008-2010 USDM models which have the common international Denso ECU pinout.
·
2015-2021 WRX STI with VA chassis code, for JDM/AUDM/SADM/EURO markets, with turbocharged
EJ20 or EJ25 engines.
WRX11USDM supported models that were sold new in USA or Canada:
·
2011-2014 WRX STI hatch or sedan, GR/GV chassis code, manual transmission only. (note 2010 and
earlier models used a different pinout which is supported by our WRX11 ecu).
·
2015-2021 WRX STI VA chassis code, must have EJ series engine, manual transmission only. (FA20
engine not supported).
If vehicle origin or year is in doubt then the easiest way to tell if you need a WRX11 or WRX11USDM ecu is to
check the main ecu header for presence of wires in plug B134, positions 1, 2 & 3. If there are wires in these
3 cavities you need the USDM ecu, if no wires are present then the WRX11 is needed. Note some factory
documentation uses different pin numbering conventions so reference below image or view WRX11 plug-in
manual for full image.
Unsupported features:
·
The Security/Key lamp will remain illuminated in some models.
·
Secondary Air pump (emissions).
·
AC Request and CE lamp (CAN bus controlled) has been reported as not working on some 2013-2014
models. This should be a simple firmware update to fix but we haven’t yet been able to find a car with
this specific problem to test. Please contact tech support if you suffer this problem and are technically
capable of helping investigate.
Supported features:
·
Factory DCCD system
·
SiDrive (can be setup to adjust anything you like in ecu)
·
MFD display, trip computer and gear display.
·
ABS, stability control and all factory safety functionality.
·
Hill start assist
·
Brake pressure, all 4 wheel speeds, rear demister, handbrake, Trac mode, diff mode, steering wheel
position and other CAN data able to be used for logging or other strategies.
·
All other dash gauges and warning lamps working per factory. CE Lamp can be used for other functions
such as shift light or knock warning.
1.2.2
Board Switch Settings
Some Link Plug-In ECUs require switches on the board to be set before installation.
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