I posted a while back about my hesitation problem (see below)  One of
you suggested I test and or replace the Fuel Pressure regulator.  How
is this done.  I have 190 psi compression (all 4), Vacuum is 18 in Hg,
fuel pressure still unknown, my guage only goes up to 15 psi so I will
have to save that step for last.  I have had this problem for months
now and don't think it is low fuel pressure because I don't think my
engine could have survived that long on a lean condition.  What do you
guys think?
Thanks

Previous post
(e36 318is bogs down at certain throttle positions)

Hello all,
    I have been battling a problem with my 93 318is for about 5 months

now.  It runs strong when cold but as it reaches normal operating temp,

it seems to bog down when the accelerator is applied medium to hard.  I

have learned to back of the accelerator just a bit and the hesitation
goes away, as long as I apply the accelerator slowly thereafter.  I
have checked and replaced all old or worn vacume hoses.  I have sprayed

carb cleaner around hoses to identify leaks.  I have good compression
and burn no oil.  (plugs are all normal)  I have taken the Idle air
control valve off and cleaned it.  If the fuel pump was weak, would it