Introducing the Fueltech FT550 Standalone Honda K20 K24 Series Engine Harness with Built-in Mini Fusebox. I Have two versions of harnesses, Version 1 will cover all Honda/Acura chassis, RWD swaps, and any Front mounted engine swap. Version 2 will be an Extended interior harness version to cover Mid-Engine Vehicle swaps such as Toyota MR2 and Acura NSX. Please select your chassis configuration in the drop-down menu.

One of the standout features of this harness is its independent Fuse/Relay box, eliminating the need for any under dash wiring in designated race cars. This streamlined design ensures a clean and efficient setup. Crafted with the utmost precision, the harness features high-quality, temperature-resistant TXL wiring that can withstand the demands of racing environments.

For EF, EG, EK, DC2 Honda/Acura Chassis, a K swap Conversion harness is required for your specific chassis (I offer them on my website). For Universal applications (other chassis) the use of a Universal Conversion harness will be needed (I have them listed on my website as well). I will provide a C101 Connector adapter that will be plug and play to such conversion harness. For Race car applications with no dash/Interior harness a Switch Panel will be required which is in the works.

Note: This harness no longer comes integrated with the firewall quick disconnect as shown in pictures.

In addition, our harness provides additional Deutsch connectors, specifically incorporated for expansion in Dual Injector setups, or additional Inputs/Outputs to cater to any additional components that may be essential for your setup. These connectors provide the necessary flexibility to accommodate your specific requirements and eliminates the need to cut into existing harness for add-ons.

When it comes to versatility, this harness design stands unmatched in the industry. Every connector is conveniently labeled, ensuring effortless installation and eliminating any guesswork. Say goodbye to the hassle of deciphering complex wiring diagrams—this harness makes the installation process a breeze.

By leveraging the factory connectors, this harness offers a plug-and-play solution, allowing for straightforward installation without the hassle of modifying or adapting your current sensor configuration. This not only simplifies the installation process but also ensures compatibility with the original sensors designed for your Honda K20/K24 engine.

Maximize the potential of your engine without the need for additional modifications or sensor swaps. This harness is designed to work harmoniously with your factory sensors, delivering optimal performance and peace of mind.

***Note: Charge harness not included must be ran independently. Must run High Impedance injectors, is not compatible with a resistor box.

Connections Included on our Harnesses: (For Reference ONLY):
Fuel Tech Connectors A & B
CAN BUS A
CAN BUS B
Fuel Tech Strain Gauge (Gear)
Mini Fuse/Relay Box
8 Inj AUX 8 Pin Connector
12 Pin AUX (Input/Output Connectors)
12 Pin AUX (12+/Ground/Sensor Ground/5V)
6 Pin AUX (Conversion Harness Adapter/Switch Panel)
VTEC solenoid
VTC
3 Pin Oil pressure
Crank Sensor (CKP) (02-04 K20 style)
OEM Coils 1-4
Cam (CPS) Exhaust Side
Top Dead Center sensor (TDC) Intake Side
Engine Coolant Temp (ECT)
Intake Air Temperature (IAT)
Alternator (02-04 K20 style)
Throttle Position Sensor (TPS)
Idle control motor
Electronic speed sensor (VSS)
OEM Injectors 1-4
Reverse Lights
Starter signal
Power distribution Block
Ground
Radiator Fan with OBD1 Style Fan connector

K20/K24 FUELTECH 550 STANDALONE ENGINE HARNESS W/ BUILT IN FUSEBOX