[HWYSTR455]

Do you have a separate pump controller, or are you using the controller built into the FiTech?

My understanding is the pumps sold my TanksInc, the Walbros, are not compatible with the FiTech pump output. I would guess the Summit pump is no different. I suggested running a relay, and go to a switched 12v source, especially during troubleshooting. I personally would leave it that way.

Make sure your feed line is in fact plumbed to the pump output fitting, and you don't have them swapped. Make sure you have a good tank vent too. You may want to disconnect all lines connected to the factory lines and blow them out with compressed air. They can rot internally and flake. Also remove the regulator and make sure it's not blocked from debris.

Screw that gauge, they never work right. Enable logging, and take a reading from key on, crank, that few sec sputter, and review it. Or hook up an external gauge.

I helped a member here with the same issue with an FiTech, he even sent it back several times, and never got the fuel feed worked out. He bailed and went back to a carb. So you are not alone. His was a little different, it would start, and run for a short period, and then PSI would start dropping off on 'load' runs.

Google it, low psi with FiTech, you will see it's not an isolated incident.

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