I know. I saw it too. But that value isn't real. Its just calculated. It wouldn't change if the fuel pressure was 100psi or 10psi,,,,Now A/F sure as hell would change but that "fuel flow" value would not.
If you still have your SRT-4 and predator, its the same too. The Srt-4 has dozens of "Fuel Flow" PIDs you can log but none of them are based off a measurement of any fuel system related component. {i tune hundreds of Srt-4 a year. let me know if you need a tune}