HB280ZT Posted January 2, 2005 Share Posted January 2, 2005 HI All, Well here I am with a pressure problem and I can not for the life of me figure it out. For starts it is a 77 280Z with an 82 ZXT motor and trans. The wiring is all 77 including the AFM, ECU and such. I had to replace my gas tank so while I was at it I put in a MSD 2225 high pressure fuel pump. I also replaced all of the rubber lines and was trying to start the car up. But for some reason I am only getting 10psi on my pressure guage?? The pump has been primed and is wired up correctly, Blue/green wire to + and black to -. So what could be my problem????? I have the system hooked up like it was when I had the factor pump in. The fuel pickup is the top line and the return is the bottom line on the passenger side of the lower gas tank. Also I have about 6 gallons of gas in the car. What is the fuel damper for??? Should I keep it in the system or just get rid of it?? I have a good picture of the fuel pump but I am not allowed to post pictures or atleast that is what the system is telling me. Oh well. I hope someone can help me out here I really want to drive my car tomorrow with my new 3" all mandrel bent exhaust system . Thanks HB280ZT Quote Link to comment Share on other sites More sharing options...
HB280ZT Posted January 2, 2005 Author Share Posted January 2, 2005 Hi All, I am back and I have the d*^% thing running!! Would you believe that I added 3 more gallons to the 7 already in the tank and it started right up . Why would 10 gallons be the magic number?? I still do not have a clue on this one! Because when I filled it up at the station it took 9 more gallons The tank should only hold 16 gallons total!! I will have to run it for a bit and see if I have any problems using 12-13 gallons of fuel. Well I hope someone can shed some light on this one. Also it sound really good with the 3" exhaust !! Thanks HB280ZT Quote Link to comment Share on other sites More sharing options...
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