My info shows Vauxhall list 6 sub codes for this, may be your scanner cant display true sub code description
As these include 'pressure' issues I would take a look at that side next e.g. filter, low pressure supply and return, injector / rail leak off etc
My thinking is that as this is a consistent fault on over run,it may point to a pressure monitoring issue rather than electrical issue.
sub codes
Fuel Metering Solenoid Valve Circuit High Voltage
Fuel Metering Solenoid Valve Circuit Low Voltage
Fuel Metering Solenoid Valve Circuit Open
Fuel Metering Solenoid Valve Powerstage High Temperature
Rail Pressure Low Pressure
Rail Pressure High Pressure
Cheers Aidan
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