Boost and oil pressure in data logger are in BAR. You need to multiply it by 14.5038 to get PSI.
Anyway, why do you set -1,91 bar offset in boost pressure settings?
Fuel pressure is as voltage from sensor (to make it compatible for common-rail engines where users does not always scale fuel pressure sensor). Formula for bar is: bar = a*U + b, where "a" and "b" are parameters from your settings file, and "U" is voltage from logger - I checked your settings file and in your case fuel pressure in PSI will be:
fuel pressure [PSI] = (2,59*voltage - 1,29)*14.5038