There is a constant, as well as a curve (2D) vs pressure differential. Be aware (perhaps you already are) you need to make changes for the pump as well.
Sorry for the thread resurrection but Is it the pressure relative to ti one for the 2d map? If that's correct - can have a look later if it's the one I think it is but do you change the values or the axis? And would it be increasing it based on more pressure or lowering as it'd be relative to a higher pressure (hopefully you don't mean fbvade - from memory, which looked to be wot enrichment) which I left alone. I need spoon feeding a bit, I've changed the 4 timin maps for larger injectors and tried not to change fkkvs too much and I know about lowering the hpfp pressure for idle afr's as I can get the idle and low load afr's sorted
Thanks in advance though
