Jb4 Interface Program9/23/2023 Check the installation guide below for additional information on identifying your existing hardware. For the Stage1 hardware version systems purchased after approx 11/1/16 are REV2 and can be identified by an unused black Molex/2 position connector already incorporated in to the harness. Vehicles in the USA and most other countries are left hand drive (LHD) while UK, AU, SA, and a few others are right hand drive (RHD). When ordering use the drop down to specify left or right drive hand and your Stage1 hardware version. This JB4 requires exclusive OBDII/CANbus access while tuning is enabled and is not compatible with various CANbus enabled boost gauges or 3rd party devices that also require OBDII/CANbus. After the upgrade you can keep your old Stage1 board as a spare/backup. There is no longer a core exchange program available. The JB4 BETA features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more. tekij sen suhteen mik XDF kannattais N54 JB4 Features & Benefits N54 Power gains of. Upgrades your existing BMS Stage1 to a EA888 JB4 BETA system. 30 ECU programming guide Nissan GT-R on EcuTeks in-house dyno.
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