M52 3/2 Fuel Valve (Running Losses)

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  • DiamondschwarzE30
    Member
    • Jul 2019
    • 41
    #1

    M52 3/2 Fuel Valve (Running Losses)

    Will I have any issues if I delete the running losses fuel valve from a M52 and use a fuel rail with a built in regulator? Im having a hard time finding a spot to mount it, would be ideal to just delete it and simplify the fuel lines. Currently the car runs fine with it in the system but not plugged in (PO used it but did not plug in the electrical connector for some unknown reason). What is the drawback from not using it?
    Tags: None
    • AndrewBird
      The Mad Scientist
      • Oct 2003
      • 11892
      #2
      The only fuel rail that has a built in regulator and fits is from an early 528i. They are harder to come by than the frame rail mounted regulator, so most people run those. Either will work the same.

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        • DiamondschwarzE30
          Member
          • Jul 2019
          • 41
          #3
          Originally posted by AndrewBird
          The only fuel rail that has a built in regulator and fits is from an early 528i. They are harder to come by than the frame rail mounted regulator, so most people run those. Either will work the same.
          Theres a u pull it place nearby that has a 1998 528i that I can pull one from. I believe it has the built in regulator. If that one wont cause any problems, I'll probably just do that and delete that 3/2 valve.

            Comment

            • AndrewBird
              The Mad Scientist
              • Oct 2003
              • 11892
              #4
              It has to be a car built before September of 97. More info here:

              https://www.r3vlimited.com/board/forum/e30-technical-forums/24v-engine-swaps/m50-52-s50-52/233756-any-obd2-s52-peeps-with-m50-manifold-and-m50-fuel-rail?t=266453

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