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For six-cylinder engines on an FT450 or FT550, this A harness comes with the connectors, relays and fuses already built in, so a standard setup goes in plug-and-play. It drives six injectors and six coils in semi-sequential fuel and wasted spark, and the insulation and connectors resist heat, moisture and oil.
- 6 EV1 injector outputs and 6 smart coil outputs
- Semi-sequential or multipoint injection with wasted spark
- Ready for 2 FuelTech Peak & Hold external drivers (jumpers included)
- Ready for one FuelTech WB-O2 Nano with Bosch LSU 4.2 sensor
- GM-style intake air and coolant temperature sensor connectors
- 2 pressure sensor inputs (fuel, oil or another 0-5V sensor)
- Crank and cam connectors with VR and Hall options
- Extra output connector for general use
- 3 relays separating injector and coil power from the electronics
Installation notes
Low impedance injectors use the FuelTech Peak & Hold drivers. With high impedance injectors no driver is needed, only the included bypass jumpers. Output Blue #6 must be configured as Fuel Pump or RPM activation to energize the coil and injector relays.
What's included
- Harness
- 2 Peak & Hold jumper harnesses
- Mating kit for the EXTRA connector
- User manual
Warranty: 1 year worldwide.
Related parts
This is the A harness only, which is all the FT450 needs. To use every extra input and output on an FT550, add the FT550 6 Cylinder Expansion B Harness.
FuelTech FT450/FT550 6 cylinder universal harness manual (PDF)
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