Originally posted by OneLethal87GN
I lose pressure after shutting off as well, but not suddenly. It takes about 10 minutes or so. Also, my fuel pressure gauge reads in the mid 20s at idle and rises accordingly with boost. My O2 counts are low 800s so I know it's not running lean. The pump is new, injectors have about 2 years on them, and the regulator has about 3 I think. I have tried adjusting the pressure with the regulator, with little luck. I can raise it with my K-B boost-a-pump though. Regulator my problem or just bad gauge?