Yes see the Brown wire there, its probrerly been cut because the engine has had over Fueling in a morning Cold start, all caused by most times Leaking 1 of the 4 normal injectors, or someone playing with the Pressure actuator [ for more performance ] do bear in mind the gauge will give the pressure readings on only relay bridged , if when engine running, ignor readings as the pressure responds to the metering unit and will fluctuate. Peter