S197 Mustang (2005-2010)
im having and issue with high fuel pressure on my 05 v6 mustang some times it is at 50 psi most times 62-67 psi, check frps with a mechanical gauge wich the gauge was 8 psi under ive read that is normal, in key on engine off the pressures were exactly the same . went to do a continuity test for...