Ok so for months I’ve been having fueling issues with my car. Under boost the rail pressure drops to as low as 800psi..... car has st2 lpfp, brand new index 12s from fcp maybe a month old (200miles), brand new hpfp from fcp maybe 200miles aswell. Car starts fine, idles fine, and drives fine but log shows the rail pressure drops out under boost. Not sure what the issue could be now. I’m going to change the rail pressure sensor. But other wise I’m lost with ideas there’s no fuel leaking anywhere in the bay or under the car. Any one have any input?