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I don’t think it’s that though because I’m showing 2280 psi without the engine running. And HPFP sens volt is constant. I just put a new engine in mine and suddenly it has this issue. I traded everything fuel related on the new engine for stuff on the old engine that I know works and still have...

I am having this exact issue right now. Did you find a solution?

That looks like the part I changed yesterday morning to no avail. I thought it was the fuel pressure regulator though. My AP says that it’s sitting right at 2280 but moves +or- about 2 psi during start up and while the engine is running. So far I’ve swapped the HPFP, the relief valve, and the...

Update: replaced HPFP and fuel pressure relief valve and checked all the grounds on the main harness and I’m still getting 2281psi HPFP act pressure. I’m stumped

The code was 0193. So you think an improper ground is causing the pump to run constantly?

“Fuel rail pressure high input”. I don’t remember the exact code though.

Fuel issues On my gen 1 speed 3 I just had to put a new engine in and I’m still working out lots of kinks. A major one of which is that with key on engine off my access port reads that the act pressure is 2280psi. From what I understand this number is supposed to be like 60psi. This engine has...