Description.The ready-made harness for F T450 and FT550 4 cylinders provides greater practicality and speed when assembling your car.Designed to meet all 4-cylinder engine connections, the ready-made wiring harness has several connections so that installation is quick, simple and with a high-quality finish.It has connections for:.FT450/FT550 (Connector A).WB-O2 Nano (already connected to the FT450 CAN network).Broadband probe.4 injectors (semi-sequential).4 Smart Coil FuelTech coils (sequential) or and nbsp; VW Gol G6.Inductive (Fiat) and hall (VW Flex) rotation sensor.Phase sensor (VW AP hall distributor).Peak and Hold (optional use via jumper connector).TPS (VW AP).Air and engine temperature sensors (Fiat).Oil and Fuel Pressure Sensors and nbsp; ( PS-10B ).and nbsp;.It has an EXTRA connector with 2 inputs and 4 outputs not used by the main harness, ready for you to make the rest of the harness according to your needs for different functions: boost controller, nitro, wheel speeds, electric fan, fuel pump, cold start, 2-step, 3-step, etc.The FuelTech ready-made harness contains a main relay , injector relay and coil relay , all protected by a fuse.and nbsp;To further expand your project, use the expansion harness for the FuelTech FT550 injection module . Together, the two harnesses (main and expansion) will serve up to 8 injectors with sequential or semi-sequential activation. The ignition system can be controlled with up to 4 sequentially activated outputs. In addition, the expansion harness allows the use of 5 more configurable inputs for the use of pressure sensors, wastegate and others, in addition to 8 configurable outputs for the use of the integrated GearController, CAN B, etc.Attention: and nbsp; The Expansion harness is only compatible with the and nbsp; FuelTech FT550 and nbsp; module and must be used in conjunction with the main harness. and nbsp; and nbsp;