How to install Aux Fuel Adapter and Rail

To finish the hardware install, you will need to disconnect the oem fuel line connection at the firewall where the fuel line comes from under the car to the high-pressure fuel pump. Note, on a Mustang you will need a 3/8 inch fuel line disconnect tool, and for a Focus you will need a 5/16 inch fuel line disconnect tool. 

6) Using the disconnect tool, pop the line apart and install the fuel line T fitting back onto the line then reconnect the OEM fuel line to the top of the T fitting. Note, be sure to make sure all fittings on the T are tight, including the 1/8 npt fitting on the back of the T. 

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7) Next, connect the provided line to the T fitting and the fuel rail. Make sure all fittings are tight, pressurize system by turning the key on, and check and address and leaks. 

8) Wire up the Split-Second Controller (SSC) using the correct wiring diagram found in the FAQ section of our website. 

Note, the SSC does not come with a 0 map loaded on it. If you plug in the port injectors before getting a base file from your tuner, the injectors will be firing at idle which will make the car extremely rich and undriveable. Always load a base map into the SSC before plugging in the port injectors.

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