Hi Greg, the only thing that changed was that the second time the wix filter and oil system was full.
So the second time with the new wix compares the time / pressure with the old filter.
Not sure the 3psi is in the error readout range.
The 2 psi drop while revving up is strange. With more spring tension it behaves more normal, that is the pressure goes up when revving.
Overall the cold start pressure seems to come a bit faster. But the temperature was a bit higher as well.
Next step is the " adjustable" spring for the pressure relief and see what is going on with that new variable.
I do not know, just trying to generate some date to make an " educated guess"
Johan