Holley - Ford Mpfi Coil On Plug Main Harness

The Holley Ford MPFI Coil-On-Plug Main Harness (Part Number: HLY558-118) is a comprehensive wiring solution designed to facilitate the conversion to a coil-on-plug ignition system for Ford multi-port fuel injection (MPFI) engines. This harness offers a plug-and-play upgrade, ensuring seamless integration with existing systems. **Key Features:** - **Built-in Coil-On-Plug Harness:** Simplifies the installation process by incorporating the necessary wiring for coil-on-plug setups. - **Additional 40 Amp Relay:** Provides dedicated power to individual coils, enhancing ignition performance. - **Pre-Terminated for Ford PWM IAC:** Comes pre-wired for the stock Pulse Width Modulated Idle Air Control motors commonly found on fuel-injected Windsor 5.0L engines. - **High-Quality Wiring:** Utilizes 20 AWG gauge wire or larger to ensure durability and reliable signal transmission. - **Compatibility:** Designed to work seamlessly with Holley Smart Coil Sub Harnesses (Part Numbers: 558-312 or 558-318). - **Dual CANbus Connectors:** Equipped with dual connectors to support multiple CAN devices, allowing for expanded system capabilities. - **Extended Sensor Lengths:** Features multiple sensor lengths to accommodate various intake designs, providing flexibility in installation. This harness is an ideal solution for enthusiasts and professionals seeking to upgrade their Ford MPFI engines to a coil-on-plug ignition system, offering enhanced performance and reliability.