Description
The FiTech Knock Sensor Sub Harness Replacement (70050-9) is an essential component for Gen IV LS engine builds utilizing FiTech’s Ultimate LS EFI systems. Designed specifically for engines with knock sensors located on the side of the engine block, this sub-harness extends the necessary wiring for proper knock sensor integration. This ensures accurate engine monitoring and performance optimization within your EFI setup.
KEY FEATURES AND BENEFITS:
- Direct Connection: Provides a reliable connection for knock sensors, simplifying the wiring process.
- Accurate Knock Detection: Ensures precise knock detection, crucial for preventing engine damage and maintaining optimal performance.
- Direct Fit: Specifically designed for Gen IV LS engines, reducing installation time and compatibility issues.
- Efficient Wiring: Simplifies the installation in applications where the stock harness may be insufficient.
SPECIFICATIONS:
- Part Number: 70050-9
- Compatibility: Gen IV LS engines with side-mounted knock sensors
- Application: FiTech Ultimate LS EFI systems
- Harness Length: Approximately 23 inches
- Weight: 2 lbs
- Dimensions: 33 × 2 × 2 in
HOW TO USE:
- Preparation: Ensure the engine is cool and the vehicle’s electrical system is disconnected.
- Locate Knock Sensors: Identify the knock sensors located on the side of the engine block.
- Disconnect Existing Harness: If applicable, carefully disconnect the existing harness from the knock sensors.
- Connect Sub Harness: Attach the FiTech Knock Sensor Sub Harness (70050-9) connectors to the knock sensors.
- Route and Secure: Route the sub harness wiring to the FiTech EFI system’s designated connection point.
- Connect to EFI System: Plug the sub harness connector into the corresponding port on the FiTech EFI system.
- Secure Wiring: Ensure the harness is securely fastened and clear of any moving parts or heat sources.
- Verify Connections: Double-check all connections for proper fit and security.
- Reconnect Electrical System: Reconnect the vehicle’s electrical system.
- Test: Start the engine and verify knock sensor function through the EFI system’s monitoring capabilities.
BENEFITS OF USING THE FITECH KNOCK SENSOR SUB HARNESS REPLACEMENT (70050-9):
- Proper Connectivity: Ensures reliable knock sensor connectivity, vital for engine protection.
- No Custom Wiring Needed: Eliminates the need for custom wiring, saving time and reducing errors.
- Professional Installation: Provides a clean and organized installation.
- Seamless Fit: The specified length and connectors ensure a seamless integration with your EFI system.
FEATURES:
- Extended Length: Facilitates easy routing within the engine bay.
- Quality Connectors: Ensures secure electrical connections.
- EFI System Compatibility: Designed for use with FiTech Ultimate LS EFI systems.
- Simplified Installation: Makes the process of installing knock sensors much easier.
- Proper Electrical Connection: Guarantees effective knock sensor functionality.





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