withoutnick

Hello,

my E250 CGI requires few seconds to start even if it was shut down few seconds ago.

I tested fuel pressures with my scan tool and found that after a shut down rail pressure immediately drops from 55 bar to something like 8-10 bar. At the same time low fuel pressure goes up and reaches 6-7 bar.

Should the rail pressure drop so quickly?

Also, is it normal for low pressure fuel system to reach 6-7 bar? Even at idle it's about 6 bar, but gets lower to 4-5 bar when revving the engine.

If 6-7 bar is too high can it be related to long cranking before engine starts?

Thanks!