TSM Race - FuelTech FT550 Plug and Play Harness (Acura/Honda)

The TSM Race FuelTech FT550 Plug & Play Jumper Harness is designed to make converting a Honda/Acura B-Series or K-Series application to the FuelTech FT550 engine management system dramatically cleaner and easier. Instead of cutting up the factory chassis wiring, building an adapter from scratch, or spending hours identifying and repinning ECU circuits, the TSM Race jumper harness provides a purpose-built interface between the vehicle’s existing wiring and the FT550.

Designed Around the FuelTech FT550

The FT550 offers considerably more capability than a conventional factory Honda ECU, particularly for heavily modified, boosted, or competition-oriented combinations. The purpose of the TSM Race jumper is to simplify the electrical side of that conversion by providing the interface needed to integrate the FT550 with the Honda/Acura platform.

This is particularly useful for builders who want FuelTech control without replacing the entire vehicle harness. The plug-and-play approach keeps the installation organized and makes the ECU conversion easier to service, troubleshoot, or remove later compared with permanently modifying the original chassis wiring.

B-Series Options

For B-Series owners, TSM Race offers multiple versions so the jumper can match the ECU/chassis generation instead of forcing the installer to convert the factory ECU connectors. Current options listed by TSM are:

• B-Series OBD1 — Coil-On-Plug Only
• B-Series OBD2A — 1996–1998 Civic, Coil-On-Plug Only
• B-Series OBD2B — 1999–2000 Civic, Coil-On-Plug Only

That makes the harness especially attractive for turbo B-Series builds already moving away from the factory distributor ignition system. The coil-on-plug configuration allows the FT550 to take advantage of individual ignition control rather than relying on the traditional distributor arrangement. 

K-Series Option

The K-Series version provides the same basic concept for Honda/Acura K-powered applications: a clean interface for integrating the FT550 into the vehicle without turning the ECU conversion into a complete custom wiring project.

For K-swapped or original K-powered race cars, this can substantially simplify an FT550 installation while maintaining an organized harness that can be disconnected and serviced rather than permanently spliced into the chassis.

Built for Serious Builds

The biggest advantage of this harness is not simply that it connects two plugs together—it’s that it provides a cleaner foundation for an FT550-based electrical system. On a high-performance Honda, wiring reliability becomes increasingly important as additional sensors, boost control, staged fueling, data acquisition, ignition control, and other functions are added.

That makes the TSM Race jumper a strong starting point for anything from a relatively simple street/strip setup to a substantially more advanced race-car electronics package.

Why Choose the TSM Race Jumper?

The main benefit is installation simplicity without sacrificing the ability to grow the combination later. Rather than paying for extensive custom wiring simply to get the FT550 communicating with the car, the jumper handles the Honda-to-FuelTech interface in a purpose-built package.

The result is a cleaner engine-management conversion, less unnecessary cutting and splicing of the vehicle harness, easier troubleshooting, and a more professional-looking installation. It is particularly well suited to customers who already have a functioning Honda chassis/engine harness and want to upgrade the engine-management system rather than completely rewire the car.