I did a fuel pressure test and have come to the conclusions the pump or fuel pressure regulator is bad as the psi only goes up to 20. What has me stumped is that the pressure drops backs down to zero as soon as we stop cranking the engine. There are no fuel leaks that I can see or smell. Would a bad pump cause this or a bad fuel pressure regulator? As of right now, the hard fuel line in the engine bay closest to the firewall goes to my fuel filter and the one furthest from firewall is my return back to the tank ( Hope i dont have these backwards). The car was running fine before upgrading injetors, but has been sitting for about two months. Here a lil vid of how high the fuel pressure goes up and doesnt hold. Thanks for any input.
Follow Ups
Low Fuel Pressure.. bad pump or fpr? - Serg300zx20:07:16 06/19/11
