Last time I ran my '99 SN GT40, it ran great as usual for 4 passes, but on the 5th pass, it died as I gave it gas to accelerate. It would idle, but not take any rpms or imcrease in gas. Sounded like a gasping sound, then would die. I have replaced the fuel filter, which lead to replacing the entire FCC because it started leaking out the top of the FCC. I have also replaced the relays. The pumps are not priming when you turn the ignition on, and when it was idling in the driveway, I had a fuel pressure gauge hooked up, and it was reading 40 psi and then when I gave it gas, it dropped to nothing as the boat died off. The low pressure pump was replaced last year, so has about 50 hours on it. The hi pump is new, as the FCC came with everything in it.
I think the pumps should prime everytime you turn the ignition on, right? No matter if the FCC is full or not.
What else could be cutting power to the pumps?
I might be trailering this up the dealer on this one. Unfortunatley, its about 2 hours away.