hey guys,

I have a 2004 350z touring.83,000, A/T. I got it from another owner who didn't do any maintenance it seems. Car drove fine for a while. Wife was driving it and said it took her a while to start it. then came home and said the car was sputtering really weird and very hard. when i started it, it cranked for about 10 seconds and had a VERY hard start. still kept doing the chugging thing. now it wont start at all. cranks all day. got a VQ fuel pressure port. put it in today. it'll pressurize to 48 psi. (turning car on but not starting.) drops way low when cranking. around 20-25 psi or so. i replaced a coil, pack that went bad a little bit ago. plugs are new and have about 1500 miles on them. air filter is clear. CKP and CMP sensors have all been previously replaced as well as the oil gallery gaskets done and lots else. i don't feel a lot of it is relevant since this just started. Anyone have any ideas? would be much appreciated.