Been doing some thinking and trying to clear something up in my head. I know the old vp44 pump its important to monitor fuel pressure so you don't kill the IP. Why is this not so important on the cp3? Also what should the pressure be on the common rail trucks? I am still trying to figure whats wrong with my truck. I don't know enough about this motor to figure it out and can't afford to pay someone to look at it or just start throwing parts at it.