Nexus Rebel LS – 8-pin DBW adaptor

Throttle Body Adapter for 8-Pin LS DBW Units

The Nexus Rebel LS – 8-pin DBW Adaptor connects the Rebel LS main harness to the larger 8-Pin GM Drive-By-Wire Throttle Bodies. These 8-pin units (often referred to as “Truck” or early Gen IV throttles, such as the L92 or early LS2 truck) differ from the standard 6-pin connector found on most car-based LS2/LS3 engines. The Rebel LS main harness is terminated for the 6-pin standard; this adapter allows the use of the 8-pin variant.

Engineering Deep-Dive: Pinout Translation

The 8-pin throttle bodies carry the same motor control and TPS signals but use a different physical connector and pin arrangement. This adapter maps the Motor +, Motor -, TPS 1, TPS 2, 5V, and Ground signals correctly, enabling the Rebel LS to control these robust throttle bodies.

Operational Benefits: Compatibility

Allows the use of readily available 8-pin truck throttle bodies without modifying the main harness.

Fitment and Application Scope

Suits:

• Throttle: GM 8-Pin DBW Throttle Body (Gen III/IV Truck).
• Harness: Haltech Rebel LS Terminated Harness (HT-186500).

Technical Specifications

Summary & Includes

The HT-186506 allows use of 8-pin DBW throttles on the Rebel LS.

Includes:

• 1 x 8-Pin DBW Adaptor Harness