Oldgamer Posted June 15, 2005 Report Share Posted June 15, 2005 Ranger: I think the same, that PCM uses factory spec fuel pressure for the calculation. But that is my guess, until Guru or somebody else says that for certain. Adallak talking about difference 5%, which is very possible with 41-45 PSI difference from car to car. KHE: I didn't tell you that ECM controls the fuel pressure. I didn't tell you that fuel pressure is different from injector to injector. I told that fuel pressure is slightly different from car to car, and it is not absolutely constant. That can make a difference in calculations around 5% easily Link to comment Share on other sites More sharing options...
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