I swear I saw another post where he said the regulator was good. So I would check for blockage in the return line.
Why wouldn't the injectors fire if the pressure is too high? The light lights up but no fuel comes out? Wouldn't an abundant amount of fuel come out? I guess it's possible the blockage is somewhere else?
2008 Mercury Sable Premier
2014 Ford Focus Electric
1997 Mercury Grand Marquis GS
Moved On: 2000 Sable LS Premium Duratec