if fuel pressure is too low the injectors will not pulse min fuel pressure not met injectors wont fire as it depletes pressure in fuel rail
try looking in live data see what fuel pressure you have cranking and KOEO
IF YOU CAN BLANK OFF ONE INJECTOR AT A TIME SEE WHAT PRESURE YOU GET IN LIVE DATA
may be a good idea to download some literature on how common rail systems work help you understand what system functions and defaults at the very least HTH
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