i have using a SARD fuel pressure regulator for long time d, then just install a defi fuel pressure sensor on it....the reading was different from you all.......the reading at the defi meter not in psi or bar... below are my fuel pressure reading
1.ignition on 3.6
2.cold/warm start 2.8
3.idling 2.8
4.cruising 2.8-3.0
the reading is in kgf/cm2..........................so i want to know is the defi meter reading is correct or there is something wrong with my fuel pressure.