FiTech 70050-16 LS1/LS2 Knock Sensor Harness

FiTech's 70050-16 is a dedicated knock sensor harness (sub-harness/extension) designed for Gen III LS engines with front-mounted knock sensors, such as LS1, LS2, LS6, and compatible variants. This plug-and-play wiring harness connects the knock sensors directly to your FiTech Ultimate LS EFI system, enabling accurate knock detection for real-time timing adjustments, engine protection, and optimized performance-crucial in high-compression, boosted, or aggressively tuned LS builds. A reliable replacement or essential add-on for clean, factory-like integration in FiTech LS conversions.

Key Features

• LS1/LS2-Specific Compatibility - Tailored for Gen III LS engines (LS1, LS2, LS6, etc.) with front/block-mounted knock sensor positions
• Direct Plug-and-Play - Connects knock sensors seamlessly to the FiTech ECU harness for precise detonation monitoring and response
• Knock Detection and Protection - Enables the system to sense pinging/knock and automatically retard timing to safeguard your engine under load or boost
• High-Quality Wiring - Durable construction with reliable connectors built for automotive heat, vibration, and long-term performance
• Easy Replacement/Upgrade - Simple install as a direct swap or addition to FiTech Ultimate LS kits, ensuring full knock control without wiring headaches