FT450/550 4 CYLINDER UNIVERSAL "A" & "B" HARNESS

Overview

The FuelTech Universal 4 cylinder A harness is a great addition to any 4 cylinder build and can be used with both the FT450 and FT550 ECU’s in a complete plug and play style. It is to suit 4 injectors and 4 individual smart coils, wired in semi-sequential fuel injection and wasted spark ignition (full sequential requires the FT550 ECU and the 4 Cylinder Universal B Expansion Harness). It can be used with high or low impedance injectors; low impedance requiring the use of a peak and hold driver, high impedance requiring a peak and hold jumper harness (both sold separately). The harness is set up for either VR or Hall effect cam and crank sensors and includes 3 relays with built in fuses for main electronics, injectors and coils. The universal 4 cylinder A harness has a label for each connector and the insulation is heat, moisture and oil resistant.

This harness was designed for systems with up to 4 injectors, 4 smart coils and a FuelTech Wideband Nano O2 with Bosch LSU 4.2 sensor. It's setup to run semi-sequential or multipoint injection and wasted spark. It is already wired for use with a FuelTech Peak and Hold driver when using 4 low impedance injectors. When using high impedance injectors, a Peak and Hold driver is not needed and in this case, only a bypass connector is required (jumper included). There are 3 separate relays to power the whole system, separating the injectors and coils from the electronics. To activate coils and injectors relays the Blue#6 output must be configured as Fuel pump or RPM activation.

The FuelTech Universal 4 cylinder B FT550 expansion harness compliments the Universal 4 cylinder A harness with the options to control up to 8 injectors staged sequentially, have direct connection for inbuilt gear controller as well as the additions to inputs and outputs. The harness comes with a relay with a built in fuse for power supply to the extra 4 injectors. The injectors are to be of high impedance only. The Universal 4 cylinder B harness has a label for each connector and the insulation is heat, moisture and oil resistant. To use this harness with the FT550, the FT550 4 Cylinder Universal B Expansion Harness is required in order to use all of the extra inputs & outputs. The "B" Harness is only compatible with the FT550 ECU and must be used along with FT450/550 4 CYLINDER UNIVERSAL A HARNESS

Features - "A" Harness

• 4 EV1 injectors
• 4 Smart coils
• FuelTech Peak and Hold external drivers ready
• FuelTech WB-Nano O2 ready
• GM style intake air temperature sensor ready
• GM style engine temperature sensor ready
• 2 pressure sensors ready for fuel, oil / another 0-5V sensor
• Extra output connector for generic use
• Crank and CAM connectors (hall and VR options included)

Features - "B" Harness

• Expansion Harness to FT550 sequential injection for 4 cylinder application with 8 injectors
• Harness to be used along with FT450/550 4 CYLINDER UNIVERSAL A HARNESS

Contents of Packaging - "A" Harness

• Harness
• Manual

Contents of Packaging - "B" Harness

• FT550 (Connector B)
• 4 EV1 injectors (for high impedance injectors only)
• FT CAN B connector
• GearController sensor connector
• Extra INPUTS connector to custom wire up to 5 additional input channels for the engine or chassis datalogging (i.e. driveshaft RPM, transbrake button, suspension travel sensors, input shaft RPM, staging button and much more) - Mating connector kit included
• Extra OUTPUTS connector to custom wire up to 8 additional outputs (i.e. boost control solenoids, transbrake solenoid, dump and lockup valves, gear shift, nitrous stages and more) – Mating connector kit included
• Relay with fuse for injectors