Haltech Wiring Harnesses

Haltech’s harnesses come at different levels of work. A plug-and-play adapter harness sits between the ECU and the car’s original loom, so the factory wiring stays in place. A terminated harness replaces the engine loom for a named engine, with the connectors already fitted. A universal wire-in harness leaves the ends free for you to connect, in a basic and a more complete version, usually 2.5 m long.

Every harness is specific to an ECU family, so start from the unit: Elite 750, 1000/1500 or 2000/2500, or Nexus S2/S3, R3, R5 or the Rebel LS and JZ. Many adapters are made in both an Elite and a Nexus version for the same engine.

Sub-harnesses finish the installation: drive-by-wire and throttle adapters, injector and ignition harnesses (including coil kits for V8 engines), alternator, sensor and pedal adapters, and harnesses for manual gearboxes.

Where a harness is linked to a car in the fitment data, the car is a Nissan, a Subaru or a Honda. For the rest, compare the connectors listed in the product details with the sensors and actuators on your engine before ordering.