Designed specifically for Nissan RB20, RB25, and RB26 Twin Cam engines using the Series 1 ignition system with external OEM ignitor modules, this complete engine management solution includes the Haltech Elite 2500 ECU and a terminated engine harness with breakout sub-harnesses for CAM angle sensor and ignition coils. This plug-and-play package is ideal for streamlined setup and advanced tuning flexibility.
Note: Compatible with Series 1 coils only. Utilizes factory-style CAS and ignition module configuration.
Key Features
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Engine Compatibility:
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Suits Nissan RB20DET, RB25DET, and RB26DETT (Twin Cam engines with Series 1 coils)
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Configured for factory external ignition modules and early-style CAS
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Plug-and-Play Harness:
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Terminated engine harness with Series 1 coil sub-harness
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Includes CAS breakout harness (R32/R33 type)
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Elite ECU Performance:
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Supports DBW, closed-loop O2, flex fuel, knock control, and advanced race tuning
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Included Components
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Haltech Elite 2500 ECU with Drive-by-Wire and Race Functions
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Terminated Engine Harness (HT-130326)
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CAS Harness – R32/R33 CAM Angle Sensor Breakout (HT-130327)
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Series 1 Coil Harness (HT-130331)
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Air Temp Sensor – M14 x 1.5 Thread (HT-010200)
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Coolant Temp Sensor – M12 x 1.5 Thread (HT-010300)
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Auxiliary I/O Connector Pack
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USB Programming Cable
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Quick Start Guide
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Full ECU Manual and Software Suite (CD/USB)
Vehicle Applications
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Nissan RB20DET / RB25DET / RB26DETT (Twin Cam)
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Series 1 Ignition Type with External OEM Ignitor Module
ECU Function Highlights
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Support for 1–12 cylinders and 2–4 rotors
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Closed-loop idle and O2 control
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Variable camshaft control (up to 4 cams)
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Long-term learning and 4D tuning with per-cylinder correction
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On-board and laptop data logging (up to 200Hz)
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Dual CAN Bus for dashes, OBDII, and sensor expansion
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Launch control, traction control, anti-lag, nitrous and boost control
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Advanced torque management and sequential turbo control options
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Multiple programmable timers and engine protection strategies