The K-Tuned EF (1988 - 1991) Civic / CRX K-Swap Conversion Harness is a game - changer in the wiring market. We entered this field to offer the highest - quality and easiest - to - install conversion harness. After using our competitors' harnesses, we identified flaws and made significant improvements. Just like all K - Tuned products, we won't release it until we're confident it's a top - notch part we'd use on our own cars. A K - swap conversion harness is essential for any K - series engine swap. It connects the factory K - series engine harness to the factory dash harness of the swapped car. It's designed to integrate the K - series ECU and all related electrical functions, such as the fuel pump, tach, speedo, starter signal, and O2 sensors, ensuring they work properly. The K - Tuned harness is 99% plug and play, which means it takes very little time to install. It's made of quality mil - spec, OEM - colored wire and protected by a clean - looking mil - spec nylon sleeving. Our harnesses come with installation instructions. You'll get a high - quality conversion harness at the best price. There are several applications available, so get yours to wire up your K - swap correctly. Make sure to select your model. We need to know if your car has dual - point or multi - point injection. Some models require an adapter. If you're unsure, contact us.


Using the K - Tuned EF (1988 - 1991) Civic / CRX K - Swap Conversion Harness is straightforward. First, pick the right model for your car. You need to know if your car has dual - point or multi - point injection. Some models might need an adapter, so be sure to check. When installing, since it's 99% plug and play, it won't take you long. Just follow the included installation instructions. Connect the harness to join the factory K - series engine harness to the factory dash harness of your car. This will make all the electrical functions like the fuel pump, tach, speedo, starter signal, and O2 sensors work right. As for maintenance, keep an eye on the mil - spec nylon sleeving that protects the wires. If it gets damaged, replace it to keep the wires safe. Also, check the connections regularly to make sure they're tight and there's no loose wiring. If you have any questions or issues during use, don't hesitate to contact us.