Nexus Rebel LS - Cable Throttle + IAC sub-harness

Overview

The Nexus Rebel LS Cable Throttle + IAC sub-harness bridges the gap between your Haltech ECU and traditional cable-operated GM LS throttle bodies with separate TPS and IAC valve. Essential for classic LS swaps into older chassis where drive-by-wire isn't practical or original cable throttle setups where you want to retain that direct mechanical connection.

Technical Specifications

• Part Number: HT-186504
• Application: Cable-operated GM LS throttle bodies
• Connector Type: GM TPS and IAC valve compatible
• Harness Integration: Direct plug-in to Nexus Rebel LS main harness
• Construction: OEM-spec connectors and automotive-grade wiring

Why You Need This

LS swaps into classic muscle cars, kit cars, or track builds often retain cable throttle operation for good reason — it's simple, reliable, and gives that direct throttle response purists prefer. The challenge comes when interfacing modern Haltech ECU management with older GM throttle body designs that split TPS and IAC functions into separate connectors. Without this sub-harness, you're looking at custom wiring work, potential voltage mismatches, and the risk of incorrect pinouts that can damage expensive ECU inputs.

This becomes critical in builds like Fox Body Mustang LS swaps, classic Camaro conversions, or dedicated track cars where cable throttle eliminates potential drive-by-wire failure points. We see this constantly in the workshop — builders who've successfully completed the mechanical side of an LS swap only to hit wiring complications when connecting the ECU to a cable throttle setup. This sub-harness eliminates those headaches with proper connector matching and signal conditioning.

ECU & System Compatibility

Specifically designed for the Haltech Nexus Rebel LS ECU system. The sub-harness plugs directly into the main terminated harness, providing the correct pin assignments and signal conditioning for GM LS cable throttle bodies with separate TPS and IAC valve connections.

What's in the Box

• Nexus Rebel LS Cable Throttle + IAC sub-harness assembly
• GM-compatible TPS connector
• GM-compatible IAC valve connector
• Main harness interface connector

Complete Your Build

Most customers completing a Nexus Rebel LS installation also require additional sensors and accessories specific to their build. Whether you're running a cable throttle in a classic muscle car conversion or a dedicated track build, our technical team can recommend the complete sensor package for your application. We stock the full Haltech Nexus range alongside supporting components from UK inventory, and our pre-sales advice ensures you get the right combination first time. Contact us to discuss your specific LS swap requirements and we'll put together a complete harness and sensor package.