Vauxhall combo no start (part 1) checking fuel pressure

Hi in this video I have a Vauxhall combo, it will crank but won't start. It has no fault codes, or the fault codes have been cleared. I noticed a couple of things, while cranking the scan tool lost comms with the engine PCM. Also I noticed that the fuel pressure was stuck at 0 kPa when cranking. This led me to carry out fuel pressure tests at the low pressure supplying the high pressure fuel pump, And I checked the pressure at both, the high pressure fuel pump and at the common rail. I also checked the fuel rail pressure sensor's signal voltage. I was happy that I had fuel pressure in the rail when cranking the engine, the problem was the scan tool data didn't show any fuel pressure. This was my first test, checking it's fuel pressure and the sensor signal. The sensor signal did seem a little low for the pressure indicated on the fuel pressure gauge. I will hopefully get back to this and see if the injectors are getting a pulse when they should and find out why the scan tool lost comms with the PCM Thanks for watching and if you have any suggestions, please leave it in the comments. Have a nice day.

• #autos_vehicles
• #vauxhall
• #combo
• #no_start
• #no_fault_codes
• #fuel_pressure_testing
• #common_rail
• #fuel_rail_pressure
• #fuel_supply_pressure
• #fuel_pressure_gauge