Quote:
Originally Posted by kiwimagic
it holds about 40 psi with engine running. Rises a bit when engine is revved up. Then holds 40 psi for over 11/2 hours at least.
I did have a problem with the fuel pressure regulator leaking. (Instant fuel pressure drop) but swapped it out for a good one. I thought that was my problem, but no problem still exists.
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Where abouts in the system are you checking pressure, inlet or return side of rail?
Could also be loosing pressure after the reg..