Fuel Pressure

SYSTEM OPERATING PRESSURE [1]
Vacuum hose connected 3.2 - 3.8 bar (46 - 55 psi)
Vacuum hose disconnected 3.8 - 4.2 bar (55 - 61 psi)

SYSTEM RESIDUAL PRESSURE [2]
Cold engine 2.2 bar (32 psi)
Warm engine 3.0 bar (43.5 psi)

[1]: At idle.
[2]: After 10 minutes.