FuelTech 2002007265 Complete Wiring Harness for ECU - LS550 V8 FT550

The FuelTech LS550 V8 Complete Harness is a plug-and-play wiring solution designed for standalone GM LS engine swaps utilizing the FuelTech FT550 or FT550LITE ECU. This pre-terminated harness comes with all relays and fuses for a simple 3-wire battery hookup and ignition power. Each connector is labeled and the harness insulation is heat, moisture, and oil-resistant.

Key Features:

• Completely wired for 8 sequential EV1 injectors directly with no sub-harness required, compatible with high impedance injectors
• Compatible with OEM LS coils already wired in fully sequential without requiring coil sub-harness
• Ready for both 58x and 24x triggers with provision for direct connection to LS3-style ignition coils
• Set up for both cable and drive-by-wire throttles, with connector for GM-style accelerator pedal on cabin side
• Flex fuel ready with connector for Continental flex fuel sensor and setup for two FuelTech WB-O2 Nano conditioners and two Bosch LSU 4.2 O2 sensors
• INPUTS connector for up to 6 additional input channels for engine or chassis datalogging, and EXTRA OUTPUTS connector for up to 8 additional outputs
• Includes three 40A relays and fuses: Main relay powers ECU and sensors, second relay powers injectors, third relay powers ignition coils
• Includes firewall grommet to hold and seal the harness

Package includes LS550 V8 Complete Harness, 2 Peak & Hold Jumper Harnesses, LS550 8-way connector kit, LS550 10-way connector kit, LS550 12-way connector kit, and operation/installation guide. Perfect for LS swap applications when replacing the stock ECU and harness completely.