LAST WEEK A BRONCO CAME IN,PERFORMANCE [...] IT TO A INTERMITTANT FUEL PRESS. REG. FAULT. IS 100 PSI TOO MUCH! REPLACED REG. AND O2 SENSOR RAN KOER TEST GOT "EGR NOT OPENING"VERIFIED VACUUM TO SOLENOID VERIFIED SIGNAL TO SOLENIOD WITH NO CHANGE IN VACUUM SIGNA... Login to read more.