Just replaced the filter on my FASS system.

Had a hard time priming the system.

Finally I filled the filters up with diesel and it started running.

The FASS system isn’t coming on when the key is on or when the truck is running.

It does come on for a split second when you turn the key on then nothing else.I have straight wires the pump and it comes right on.

Checked voltage at the inline fuse and the relay all check out and have 12 volts.

Could the safety fuel cut off switch cause the pump not to come on.

Need some help don’t know what else to do.


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