Description

Link Part #JZX90 (SKU: 235-4000)

 

The Link G4X range of engine management systems builds upon the previous G4+ ECUs by featuring an all new micro-processor, an upgraded communications chip and expanded data logging. These improvements allow for a more responsive and accurate tune, much faster download speeds and far greater internal data logging capacity.

 

The Link G4X range of engine management systems are well known for delivering class-leading performance without sacrificing factory levels of drivability. The G4X plug-in ECUs are designed to be the most complete plug-in solution yet.

 

This Toyota JZX90 Mark II plug-in ECU will save you time and money as they will plug straight into your vehicle’s original wiring loom without the need for messy adapter harnesses. It replaces the original circuit board inside the factory ECU enclosure and mounts using the factory brackets.

 

This Link ECU is suitable for the models listed below:

 

Once the installation is complete, the Link G4X allows a good tuner to achieve an optimal state of tune to get the most out of any combination of modifications.

 

All Link G4X plug-in ECUs come with a base map. While these maps are designed to help save time for you and your tuner, it is essential that these are used simply as a starting point for further tuning.

 

The factory air flow meter is no longer required. This ECU can also be set up to control boost electronically with in-cabin adjustment. This eliminates the need to purchase  a separate electronic boost control system.

 

The vehicle’s original sensors & actuators are used except for the following exceptions:

 

Loom Modifications

The JZX90 Plug-in ECU is capable of Sequential Injection, however 1JZ-GTE non VVTi engines have the injectors paired from factory. If you wish to run sequential injection you will need to rewire the injection harness. Injection drive’s 1,2 and 3 are in the factory header plug location, Injection drives 4,5 and 6 are accessed via the expansion connector (sold separate)

Extra sensor inputs

The expansion connectors on the Link G4X board is provided to allow the easy connection of additional ECU inputs. The expansion connectors provides the following:

Expansion Connector 1:

• Sensor Ground
• 5V Supply
• 1 Auxiliary Output
• 3 Auxiliary Injector Outputs (Aux Inj 4,5 & 6)
• 2 Analogue Temperature Input

Expansion Connector 2:

• Sensor Ground
• 5V Supply
• 3 Digital Inputs
• 3 Analogue Inputs

These may be used for functions such as driver adjustable boost control, switchable fuel/ignition maps, wideband lambda input, external MAP sensor, fuel pressure and oil temp/pressure.

E-throttle Connector:

• Sensor Ground
• 5V Supply
• 4 Analogue Inputs
• 2 Auxiliary Outputs

 

Packages

In addition to the ECU which can be purchased separately, we also offer the following packages:

Basic ECU Package:

• Link JZX90 ECU
• Link XS Loom
• IAT Sensor, Plug and Weld-on Boss

Turbo ECU Package:

• Link JZX90 ECU
• Link XS Loom
• IAT Sensor, Plug and Weld-on Boss
• High-precision Electronic Boost Control Solenoid
• Toggle Switch with Missile Cover

Please select the appropriate package from the drop down menu.