May 15, 2002 #1 F Four-Four-Two Guest What should my fuel pressure be at the rail with the 237 regulator? Vacuum line on or off?
May 15, 2002 #4 M MSDGN Active Member Joined Jun 8, 2001 Messages 2,140 The one I had was 45 PSI...vac line off...
May 15, 2002 #7 T TURBOV6 "SECRET PARTS" Staff member Joined May 28, 2001 Messages 3,704 Is'nt the 237 a 45lb regulator?
May 15, 2002 #8 M MSDGN Active Member Joined Jun 8, 2001 Messages 2,140 They're supposed to be but I've seen them anywhere from 43-46 PSI....