Alex Sol

my 951 is running a little rough and ready for new turbo.

i suspect my fuel system may be lacking - regulator, diaphragm, lines, etc.

i started the car, pulled the fuse for fuel sender to lower fuel pressure.

i removed the nut and ball bearing on the test port and installed a pressure gauge.

started the car and it was hunting a little and settled at 35 psi

waited 30 mins to see if the pressure drops and observed 28 psi

next check is the vacuum line...

Alex Sol

so a quick check on clarks garage seems to show my 951 is in spec.

30 psi when running

35 psi when turning off and after 30 minutes

28 psi still holding

does this mean my regulator is working or that my diaphragm is working or both?

is there another test that needs to be done?