Vauxhall Corsa-C Forum banner

fuel pressure regulator

  1. Low Fuel Pressure, Regulator or Pump? *Solved*

    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...
Top