Auto >> AutoSPT >  >> Engine

How much fuel pressure does a 2003 dodge cummins injectors need?

A 2003 Dodge Cummins 24-valve engine requires a fuel pressure of 58-62 PSI. However, this is the *rail pressure*, not the pressure at the pump. The pump itself operates at a much higher pressure to achieve this rail pressure. It's crucial to check the rail pressure, as this is the pressure the injectors see.