|
Good post Humble!
I actually had similar thoughts, but some things I see IRL at the car just don't add up for me atm: I still do not see _any_ rise in fuel pressure when its comming on boost.
Did another test run last night and there's no increase in FP over the base 3.5 bar when on boost. On the contrary, FP still drops a bit to 3.25 or 3.0 bar with ~ 1 bar boost.
That was with the rerouted boost reference line.
Remember that I tested the FPR at idle with applying boost and it worked then, also matched by the log reading. So the FPR and the fuel pressure sensor read accurately (enough anyways).
With the better wiring (I assume I now have a few Volts more), the test drive last night actually showed the problem to be even worse, even at lower rpm and boost I experienced misfires from lean spikes (log showed very uneven lambda and high spikes).
My thoughts now are that the whole catch tank may be more of a restriction then a help, so I will by-pass that tomorrow and see if a direct feed from a full tank will help.
I am really puzzled so far...
|