I have a 01 which is all stock I had the BD diesel early warning light and seen it started to come on so I replaced fuel filter and no help I parked the truck and order a fuel pressure sender for my quadzilla adrenaline ( really only use this as a gauge set got it cheap ) thinking the BD warning light was bed gauge was reading 5 psi at idle and dropping with revs! I tried adjusting the regulator on pump but doesn't seem to do anything the pump is only a year old with little use installed it same time I installed vp-44 and one have any idea's?

 

You should do more troubleshooting. If you get the 5 psi warning light - did you do a check to help determine if actual pressure is low (pointing towards lift pump problem - or some obstruction in fuel lines or fuel filter).....or if your pressure sensor might be faulty? Have you verified your LP is working properly? (Even a fairly new LP can die ...so don't assume it can't be a problem because it is only 1 year old.)

And while you are at it...consider upgrading your fuel lines - get rid of all banjo bolts and go to something like Vulcan's "Big Line Kit" ....helps ensure adequate flow to the IP - assuming the LP isn't having problems.