Use your scan tool to check the FRP_PID and compare it to the mechanical guage reading.

According to the PCED, KOEO and hot idle fuel pressure readings should be around 50 psi with the pressure reading around 39 psi at 30 and 50 mph. There is no qualifying instruction to remove the vacuum line anywhere in the testing instructions.

Steve

98 Contour SE Sport 2.5 Duratec ATX The wifey's car 89 Taurus SHO - 246K miles 94 SHO ATX - 190K 1997 F-150 5.4L ATX - The Workhorse 150K. ANY THREAD WITH "OMG" or "WTF" ETC IN THE TITLE WILL BE IGNORED!