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  1. 70-83 Tech Discussion Forum
    My 1983 280zx had always had a hard time idling at stop and I assumed my fuel pump was on its way out, eventually it picked up dead spots and the car started lurching so I replaced it with a Walbro GSL392-400-939 Inline Fuel Pump off a forum recommendation, after trying to adjust my air fuel mix...
  2. 70-83 Tech Discussion Forum
    Hi all, my 280zx 1983 non-turbo has a fuel leak. I attached the video i took yesterday in the link below. To me, it looks like the fuel dampener is leaking pretty bad and you can see it soaking the lines on both in and out lines to it. How would you go about testing or replacing it? Also...
  3. 70-83 Tech Discussion Forum
    I recently bought a 82’ 280zx and the pump is giving me ****… It primes but doesnt shoot fuel, then sometimes it does shoot fuel, then sometimes it primes when it shouldnt, then sometimes it doesnt prime, my lines are good… my pump is brand new and worked on a previous car before i swapped over...
  4. 70-83 Tech Discussion Forum
    Hey friends, 72 240z and I'm looking to add a small fuse/relay box to handle my relays and looking to get some thoughts on this wiring for the fuel pump and starter. The idea is to use a later 280z/280zx 2pin oil pressure sender. After some searching I believe the sender is a normally closed...
  5. 70-83 Tech Discussion Forum
    hey all, recently been reviving an 81 280zx and have had amazing progress so far but have had to do lots of work on fuel pump in the past, and with a new billet aluminum fuel rail/pressure reg installed i wanted a new pump to go with it to compensate for the higher (and yes i know slightly...
  6. 70-83 Tech Discussion Forum
    Hello. My stock fuel pump on my 77 280z is dead. There are some threads on here about aftermarket pumps but they don't really line out the details of the pumps. A lot of folks have used the MSD2225. The web says "Flows 43 gph (282 lb./hr.) gasoline @ 40 psi". Is everyone putting it back in...
  7. 70-83 Tech Discussion Forum
    A couple questions regarding possible situations where fuel is not being delivered. To preface, I'm new to mechanics and whatnot my background is embedded systems. In regards to the electric fuel pump, when I turn the key there is no voltage at the electric fuel pump. Ive read some things about...
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