What to Tune First

[Dirktdolman]

I have a Vin: U and I just ran the key on engine off pressure test and it came back with 48 PSI.

I put a new Delphi Fuel Pump (FG0053), Napa Fuel Pressure Regulator (2-19782) and fuel pump relay on 24 Nov 2014. I would have put a new filter in at the same time but the one in there was only about 6 months old.

I did some research on Napa's website about the Delphi pump. Napa site says fuel Pump Pressure rating: 425 kPa. I converted this to 61.64103865 psi.

So something is wrong. Weak pump, weak FPR or plugged filter. I will replace the filter tomorrow and re-run the test.