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fuel pressure

  1. Mechanical
    Hi all, I have an issue. My car is struggling to start. There is a strong crank, and it eventually gets there. Upon checking fuel pressure, it runs steady at 50psi, but drops to zero after a few seconds with the engine off. Additionally, the fuel pump isn't priming, as pressure stays at zero...
  2. Mechanical
    Due to a hard start, I tested my fuel pressure using the fuel rail schrader valve. It was low; when primed the pressure jumped slightly, and then drained. Once the engine was running, pressure was steady at about 28psi. With engine turned off, pressure drained immediately. By restricting fuel...