IS300 Haltech Nexus R3
The VE Plug & Play Haltech Nexus R3 Harness for the USDM IS300 with 2JZGE VVTi engine is a plug and play solution for your oem 2JZGE VVTi to the Nexus R3 ECU. The VE 2jz vvti harness supports Nexus controlled VVTi and OEM DBW for unmatched control of ALL engine functions while tuning. Setting up the Haltech Nexus ECU to control the VVTi and DBW (manual trans) on the IS300 allows the engine to be tuned flawlessly for reliable performance under any condition. By fine tuning the VVTi through the Haltech ecu the engine is able to make reliable repeatable power time and time again. Cars with manual or automatic transmissions can also take advantage of full OEM Toyota DBW control on the Nexus R3 VCU. If you want your IS300 to drive like a Lexus and make big power with a reliable ECU this is the package for you.
2023 update: Full Automatic transmission control via the Haltech Nexus R3 for all Automatic IS300 builds. Yes that is correct full Engine & Automatic transmission control all from our Nexus r3 harness/ecu package.
IS300 2jz VVTI plug n play Nexus R3 Harness Features
All Plug and Play VE harnesses and Nexus R3 VCU packages get you an instant $100 credit towards any of our custom tuning services. This includes base map services perfect for safely getting the engine running or our full Etune service for those that want a complete tune providing the best performance and reliability possible. Want to learn more about our tuning services? Check out the links below to get a better idea of exactly what we are up to.
- Haltech E-tune 2jz IS300
- 2jz Wide band knock sensor and ignition timing explained
- E tuning and data logging explained
IS300 to Nexus R3 ECU Harness Expansion Ports / Connectors
The Velocity Element plug and play harness for the Lexus IS300 offers an optional auxiliary connector with a Deutsch DTM 12P connector for adding common aftermarket sensors including fuel pressure, oil pressure/temp, turbo shaft speed, VE wide band Knock sensors, exhaust MAP and ethanol content aka Flex fuel sensor. The expansion port also includes a sensor ground, 5v reference, 12v power from relay and high side output for activating a relay or solenoid, a low side output for boost control and analog inputs for mode switch and no-lift shift. Combine this with full DBW and VVTI support for the 2jz and you have an easy to use complete wiring harness solution to get your 2jz vvti engine running perfectly in any IS300 chassis.
VE Harness Expansion options:
- Automatic transmission control moved to Haltech Nexus R3.
- IO expansion box (pre wired to harness + includes the Haltech IO expansion module.)
- 12 pin DTM accessory connector (easily add sensors/inputs/outputs/Traction control via 12 pin DTM connector)
- 12 position map select switch
- CANbus Key pad MAP select and PDM function control
- Anti Lag solenoid output
- Rolling Launch switch
- Custom harness options (you tell us what you need and we deliver)
Haltech Nexus R3 IS300 Automatic Transmission Control
We are proud to offer a new update for the Automatic transmission IS300. This new option moves all transmission control functions to the Haltech Nexus R3. This is the perfect option for anyone looking to add paddle shift functions or better control/tune a built automatic transmission or A340 trans from the turbo Supra. We do highly recommended using this option if you are looking to push the limits of the automatic trans. (Please note we also recommend adding the IO expansion module options with Automatic transmission control. This ensures you will have enough inputs/outputs for other aftermarket sensors/functions. This is not required for automatic cars, the normal harness leaves automatic trans control on the OEM ECU.
ALL aftermarket ECUs, Harnesses and packages are for Motorsports use only never to be used on any public road within the USA. Please check you local laws and regulations before installing any motorsports or ECU relate products.