K20 K24 K Series K Swap Conversion Wiring Harness for ECU V2 | OBD1 92-95 Honda Civic | 94-95 Integra DC2

K-Series Swap Conversion Harness – Plug & Play Wiring Solution

Upgrade your K-swap project with a high-quality, plug-and-play conversion harness designed to properly integrate your K-series engine into your chassis. This harness connects your factory K-series engine harness to the factory dash harness, ensuring clean and reliable electrical communication throughout the vehicle. It allows the ECU and essential functions to operate exactly as intended, including fuel pump activation, tachometer signal, speedometer, starter signal, and O2 sensor operation.

Why Choose Our K-Swap Conversion Harness?

• 99% Plug & Play installation – minimal wiring required
• Built using premium TXL automotive wire
• Protected with durable nylon braided sleeving
• Clean and professional OEM+ fitment

This harness is engineered for seamless installation and a factory-like finish. No instructions are included; however, professional installation is recommended to guarantee proper function and longevity.

Version 2 Improvements

This updated V2 harness now includes upgraded connectors for easier integration:

• Direct plug-and-play connectors for Fuel Pump Trigger, MIL, and ELD
• Charge light and fan switch leads left as flying leads (not required for operation)

Fitment & Compatibility

• Compatible with USDM & JDM 2002–2004 engine wiring harnesses
• Works with: K20A, K20A2, K20A3
• Designed to run factory wideband O2 sensor setups
• European harness users (UKDM K20A/K20A2) must convert to narrowband O2

Does NOT Fit

• 05–06 engine harnesses
• Any K24 engine harnesses

Premium Build – Affordable Value

The end result is a clean, durable, high-quality conversion harness offered at an exceptional value. If you’re completing a K-swap, this is one of the most important pieces you’ll install—ensure it’s done right!

Professional installation is recommended.