FASS Titanium Install Class 8 Part 1

The FASS Titanium series designed for Class 8/Semis is available at Orange County Diesel in Huntington Beach, California. If you have any questions about any other FASS product, or if you need expert assistance installing your FASS Platinum, feel free to call and speak to a FASS service professional at 714-848-2170.

This is Part 1 of a model-specific five-part series about how to install a FASS Platinum fuel system.

Please find the links to Part 2, Part 3, Part 4, and Part 5 here.
 
Step 1: Install Electrical Harness
Installation of the electrical harness is done first, allowing power to be applied to the pump
for lubrication purposes.
Use of corrosion preventative spray and dielectric grease is recommended where electrical connection are made.

The particulars of Step 1 differ depending on the type of Class 8 machine you have. The directions presented in blue indicate the parts of the procedure where the steps differ.

Select best location in firewall for passage of wiring harness from cab to engine compartment. Find or drill a 7/8” hole in firewall. Install RS-2684 grommet for ease of installation and protection of wire harness.

Connect WE-1001 wire extension to the WH-1005.

Route red wire/loom of the wire harness through the grommet in the firewall to the ignition or fuse panel.

Using a spade terminal, connect the red lead to the "ON" terminal of the ignition switch or a terminal on the circuit breaker board that is "hot" when the key is on.

Install the Hobbs Oil Pressure Switch in the oil gallery. Using the spade/ring terminals, connect the green wire of the wire harness to the negative post and the red wire to the positive post of the battery.

Secure relay in an upright position, preferably on the firewall out of the weather. Properly secure all electrical leads and harness.