fuel presure

[kowalski]

what is the fuel presure supposed to be on these cars at idle, as in whats the regulator supposed to be regulating the fuel presure at when its idling. i want to line in a presure guage to see if my regulator is calling it quits.

[bmwman91]

It is supposed to be at 3BAR above manifold pressure at all times. At idle it might measure like 1.5-2BAR above atmospheric (3 above manifold vacuum).

[kowalski]

cool, thanks