Haltech Nexus R3 Nissan RB 25/26/30 Terminated Harness HT-186401

The Haltech Nexus R3 Nissan RB 25/26/30 Terminated Harness is a complete engine wiring solution for connecting a Nexus R3 VCU to supported Nissan RB engines. The supplied main harness, adaptors and sub-harnesses reduce custom wiring time while retaining support for key factory sensors and functions.

Engine compatibility

• RB20DET
• RB25DET
• RB25DET Neo
• RB26DETT
• RB30E

Harness includes

• Main terminated harness
• RB25/RB26 CAS adaptor
• RB30 CAS adaptor
• RB25/RB26 cable-throttle sub-harness
• RB30 cable-throttle sub-harness
• Yazaki alternator adaptor
• EV1 alternator adaptor
• Cabin adaptor harness
• Connectors and pins for terminating spare inputs and outputs

Supported OEM functionality

• RB25/26/30 factory CAS
• RB25/26/30 variable TPS
• AAC and FICD
• Yazaki and EV1 alternator connections
• Two-pin coolant-temperature sensor
• One-pin coolant-temperature gauge sensor
• Oil-pressure gauge sensor
• VCT solenoid

Supported upgrades and controls

• EV1, EV6/USCAR or Sumitomo/Denso injector connectors
• R35 coil-on-plug ignition
• Bosch LSU 4.9 wideband lambda sensor
• Dual Bosch knock sensors
• Flex-fuel sensor
• Onboard 4-bar MAP sensor
• Oil and fuel pressure sensors
• Haltech air-temperature sensor
• Thermofan and fuel-pump control
• Bosch drive-by-wire throttle and universal accelerator-pedal connection
• Haltech boost solenoid and CAN devices
• Spare I/O for additional functions

Important: Nexus R3 VCU, ignition harness, injector harness and DBW throttle harness are not included. This harness does not support early coil-on-plug systems using an external ignitor, RB30 distributor ignition or switched-type TPS; a variable TPS is required. Additional sensors or components may be required. Professional installation and calibration are recommended.